Juwitaningsih, Tita, Chemistry Department Faculty of Mathematics and Natural Science, State University of Medan (Indonesia)
Juwitaningsih, Tita, Department of Chemistry, Faculty of Mathematics and Natural Science, State Universitas Negeri Medan (Indonesia)
Juwitaningsih, Tita, Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan, Jl. William Iskandar Psr V. Medan Estate Medan

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