Simatupang, D. F., & Simbolon, M. (2023). Fabrication of Biobriquettes from Mixture of Palm Fronds and Palm Shells with Varying Binders of Tapioca and Sago Flour. International Journal of Applied Research and Sustainable Sciences, 1(4), 319–330. https://doi.org/10.59890/ijarss.v1i4.1062