Kalsum, Ummi, Natural Science Study Program, Biology Department, Faculty of Mathemathics and Natural Science, Universitas Negeri Medan (Indonesia)
Karimah, Fithriyyah, Chemistry Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan (Indonesia)
Kembaren, Agus, Department of Chemistry, Faculty of Mathematics and Sciences, Universitas Negeri Medan, Medan 20221, Indonesia
Kessya, Febrilliani Kharisma, Program Studi Diploma III Farmasi Politeknik Harapan Bersama, Tegal, 52417, Indonesia (Indonesia)
Khairafah, Muthia Embun, Pendidikan IPA, FMIPA Universitas Negeri Medan (Indonesia)

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