Nazir, Novizar, - Novelina, Efni Juita, Citra Amelia, and Rizki Fatli. 2016. “Optimization of Pre-Treatment Process of Cocoa Pod Husk Using Various Chemical Solvents”. International Journal on Advanced Science, Engineering and Information Technology 6 (3):403-9. https://doi.org/10.18517/ijaseit.6.3.848.