Willyarto, Mario Nugroho, Bina Nusantara University, Indonesia
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Humaniora Vol. 8 No. 4 (2017): Humaniora - Articles
Learning Polygons using English Language
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Humaniora Vol. 11 No. 3 (2020): Humaniora - Articles
Principals’ Challenges to Implement School Based Management in English-Speaking Schools Setting
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