This issue consists of 7 articles from 25 authors affiliated with 11 institutions from 6 countries including:

• Indonesia (Universitas Pendidikan Indonesia)
• Nigeria (the University of Lagos, Kebbi State University, TAI Solarin University, Al-Hikmah University-Ilorin, Federal University of Technology)
• Japan (Kyoto University)
• Iraq (Al-Mustansiriyah University)
• Cambodia (National Polytechnic Institute of Cambodia, Institute of Technology of Cambodia)
• the Philippines (Notre Dame of Tacurong College)

This issue consists of 8 articles from 24 authors affiliated with 9 institutions from 5 countries including:

• Indonesia (Universitas Pendidikan Indonesia)
• the Philippines (Sultan Kudarat State University, Don Honorio Ventura State University)
• Nigeria (the University of Lagos, TAI Solarin University of Education, Kwara State University, University of Ilorin)
• Russia (Moscow Polytechnic University)
• Uzbekistan (Presidential School of Uzbekistan)

This issue consists of 10 articles from 32 authors affiliated with 13 institutions from 7 countries including:

• Indonesia (Universitas Pendidikan Indonesia)
• Malaysia (Universiti Teknologi Malaysia, Universiti Putra Malaysia)
• Philippines (Don Honorio Ventura State University, Sultan Kudarat State University)
• Brunei Darussalam (Ministry of Education, Universiti Brunei Darussalam)
• India (Sant Baba Bhag Singh University)
• Nigeria (Obafemi Awolowo University, Alhikmah University, Ondo State University of Science and Technology)
• Japan (Hiroshima University, , University of Tsukuba)

This issue consists of 10 articles from 32 authors affiliated with 10 institutions from 9 countries including:

• Indonesia (Universitas Pendidikan Indonesia)
• Nigeria (University of Ilorin)
• Malaysia (Universiti Teknologi Malaysia)
• Philippines (Don Honorio Ventura State University)
• Uzbekistan (Hawwa Travel Office)
• Germany (Muenster University)
• Brunei Darussalam (Universiti Teknologi Brunei)
• Australia (Monash University)
• Japan (Hiroshima University, University of Tsukuba)

This issue consists of 9 articles from 28 authors affiliated with 14 institutions from 10 countries including:

• Indonesia (Universitas Pendidikan Indonesia, Universitas Ahmad Dahlan)
• Nigeria (University of Lagos, University of Ilorin)
• Sweden (KTH - Sweden's largest technical university)
• Malaysia (Universiti Teknologi Malaysia)
• United States (University of West Florida, Illinois State University)
• Philippines (Don Honorio Ventura State)
• Japan (Hiroshima University, University of Tsukuba)
• Brunei Darussalam (Universiti Brunei Darussalam)
• Zimbabwe (Ruya Adventist High School)
• Qatar (Community College of Qatar) 

This issue consists of 9 articles from 29 authors affiliated with 14 institutions from 8 countries including:

• Indonesia (Universitas Pendidikan Indonesia)
• Philippines (Sultan Kudarat State University)
• Thailand (Institute of Technology Ladkrabang)
• Nigeria (Science and Education Development Institute, Federal College of Agriculture, Bamidele Olumilua University of Education, Ahmadu Bello University, University of Ilorin)
• Malaysia (Universiti Teknologi PETRONAS)
• India (Rajarambapu Institute of Technology)
• Zimbabwe (Ruya Advensit High School)
• Japan (Hiroshima University, University of Tsukuba)

This issue consists of 10 articles from 29 authors affiliated with 10 institutions from 7 countries including:

• Thailand (Surat Thani)
• Indonesia (Universitas Pendidikan Indonesia, Universitas Indonesia)
• Malaysia (University of Nottingham Malaysia, PETRONAS Group Technical Solutions (Process Simulation and Optimization)
• Nigeria (the University of Ilorin, University of Calabar)
• Philippines (Sultan Kudarat State University)
• Pakistan (University of Agriculture)
• Australia (Curtin University)

This issue consists of 10 articles from 34 authors affiliated with 10 institutions from 5 countries including:

• Indonesia (Universitas Komputer Indonesia, Universitas Pendidikan Indonesia, Ruya Adventist High School)
• Nigeria (University of Ilorin)
• Malaysia (University Teknologi PETRONAS)
• Philippines (Sultan Kudarat State University)
• Pakistan (University of Agriculture, COMSATS University Islamabad)

This issue consists of 10 articles from 46 authors affiliated with 8 institutions from 6 countries including:

• Indonesia (Universitas Pendidikan Indonesia, Universitas Komputer Indonesia)
• Philippines (Sultan Kudarat State University)
• Malaysia (National Institute of Educational Management and Leadership, Universiti Tun Hussein Onn)
• Thailand (Rajamangala University of Technology Thanyaburi)
• Japan (Japan Advanced Institute of Science and Technology)
• Pakistan (university Faislabad)

This issue consists of 10 articles from 35 authors affiliated with 10 institutions from 7 countries including:

• Indonesia (Universitas Pendidikan Indonesia, Universitas Pendidikan Mandalika)
• Malaysia (Universiti Teknologi PETRONAS, PETRONAS Group Technical Solutions)
• Thailand (University of Technology Thonburi, King Mongkut’s Institute of Technology Ladkrabang)
• Philippines (Sultan Kudarat State University)
• Algeria (University of El Oued)
• Japan (Gifu University)
• Tunisia (University of Sfax)