Khiem Gia Thai, Khanh Phi Nguyen, Dien Van Tran, Vu Hoang Dang, Hung Minh Duong, and Long Nhut-Phi Nguyen, “EVALUATING ASH CONTENT IN BIOCHAR MADE FROM SUGARCANE BAGASSE POWDER”, tvujs, vol. 14, no. 8, Sep. 2024.