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Syahirah, Atikah Nur, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, 20221, Indonesia (Indonesia)
Syahputra, Ricky Andi, Chemistry Department, Faculty of Mathematics and natural Sciences, Universitas Negeri Medan (Indonesia)
Syahputra, Ricky Andi, Department of Chemistry, Universitas Negeri Medan, (Indonesia)
Syahputra, Ricky Andi, Universitas Negeri Medan (Indonesia)
Syahputra, Ricky Andi, Chemistry Department, Universitas Negeri Medan, Jl. Willem Iskandar, Pasar V, Medan 20221, Indonesia (Indonesia)
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