Rifkatul Jannah Chemistry Department, Faculty of Mathematics and Natural Sciences
Padang State University
Jl. Prof. Hamka, Air Tawar Barat, Padang, 25131, Indonesia
Latisma Dj Chemistry Department, Faculty of Mathematics and Natural Sciences
Padang State University
Jl. Prof. Hamka, Air Tawar Barat, Padang, 25131, Indonesia