Harmi Tjahjanti, P., Bamban Jakaria, R., Febriyan Ikhsanudin, A., Fernanda, R. E., Akbar, A., & Fahruddin, A. (2025). Investigation Study of Semi-Bio Briquettes and Synthesis Briquettes From Used Polymer Waste Plastic Bottles . Jurnal Improsci, 2(5), 279–292. https://doi.org/10.62885/improsci.v2i5.668