Lestari, L.; Raharjo, S.; Sudiana, I. N.; Rusman, L. O.; Sulastri, N. Effect of Microwave Power Level and Processing Time on the Quality of Palm Shell Charcoal (Elaeis Guineensis Jacq.) Briquettes: Scientific Paper. J. Serb. Chem. Soc. 2025, 90, 1069-1087.