Ahmadien, I., D. Alfian, L. Afisna, dan D. Silitonga. “The Effect of Variations in The Composition of Coffee Grounds and Cocopeat Powder on The Characteristics of Briquettes With Tapioca Flour As A Binder”. Jurnal Tekno Insentif, Vol. 18, no. 2, Dec. 2024, hlm. 130-42, doi:https://doi.org/10.36787/jti.v18i2.1714.