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1by Silaban, Saronom, Simorangkir, Murniaty, Gaffar, Shabarni, Maksum, Iman Permana, Subroto, TotoGet access
Published in Jurnal Pendidikan Kimia (2019)
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2by Silaban, Saronom, Maksum, Iman Permana, Hasan, Khomaini, Enus, Sutarya, Subroto, Toto, Soemitro, SoetijosoGet access
Published in Jurnal Pendidikan Kimia (2017)
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Article in Journal/Newspaper