Professional Development and Learning improvement is an open access and peer-reviewed journal, published by Universitas Pendidikan Indonesia, which is a dissemination medium for research result from scientists and engineers in many fields of science and technology. PDLI is a biannual journal issued on April and September.The editors welcome submissions of papers describing recent theoretical and experimental research related to: (1) Theoretical articles; (2) Empirical studies; (3) Practice-oriented papers; (4) Case studies; (5) Review of papers, books, and resources. 

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