Selly, Rini, Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Negeri Medan, Medan 20221, Indonesia (Indonesia)
Selly, Rini, Department of Chemistry, State University of Medan (Indonesia)
Selly, Rini, Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Negeri Medan (Indonesia)
Selly, Rini, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, 20221, Indonesia
Selly, Rini, Department of Chemistry, Faculty Of Mathematics annd Natural Sciences, State University of Medan (Indonesia)

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