Hidayah, Firda Nur, Chemistry Department, Universitas Negeri Medan, Jl. Willem Iskandar, Pasar V, Medan 20221, Indonesia (Indonesia)
Hidayah, Rahma, Department of Chemisty, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Padang 25132, Indonesia. (Indonesia)
Hidayah, Rahma, Department of Chemisty, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Padang 25132, Indonesia. (Indonesia)
Hutabarat, Greace Astrid Rotua, Department of Chemistry, Faculty Of Mathematic and Natural Sciences, State University Of Medan (Indonesia)
Hutabarat, Laura Nazrifah, Pendidikan IPA, FMIPA Universitas Negeri Medan

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