THANH DUY PHAN; LUAN KIEN HONG; TAI NHAT NGUYEN; NAM PHAN NGUYEN; AN DUY TRUONG; NGHIA TRONG HOANG; NAM HOAI NGUYEN; DIEU THANH NGUYEN; LONG NHUT-PHI NGUYEN. EVALUATING THE BIOCHAR CREATION EFFICIENCY FROM SPENT COFFEE GROUNDS. TRA VINH UNIVERSITY JOURNAL OF SCIENCE, [S. l.], v. 14, n. 8, 2024. Disponível em: http://journal.tvu.edu.vn/index.php/journal/article/view/82. Acesso em: 29 mar. 2025.