santosa, kresna mulya, Hendy Firmanto, and Ilham Mufandi. 2024. “The Potential of Coffee and Cocoa Shell Waste As An Energy Source: Analysis of Characteristics of Briquettes From Coffee and Cocoa Shell Waste Through The Carbonization Process”. Agroindustrial Technology Journal 7 (3):88-103. https://doi.org/10.21111/atj.v7i3.11245.