DOI: https://doi.org/10.17509/gea.v14i2.3398.g2390
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Copyright (c) 2016 Adi Priyono
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Adi Priyono
Program Studi Magister Pendidikan Geografi
Universitas Pendidikan Indonesia
Indonesia