Ira Febrina Department of Chemistry, Faculty of Mathematics and Natural Sciences
Padang State University
Jl. Prof. Hamka, Air Tawat Barat, Padang, 25131, Indonesia
Latisma . Department of Chemistry, Faculty of Mathematics and Natural Sciences
Padang State University
Jl. Prof. Hamka, Air Tawat Barat, Padang, 25131, Indonesia