Permatasari, Rosyida, Muthia Atikayanti, and Elisanti Sugitha Ginting. 2022. “Characteristic Tests of Bio-Pellets Made of Calliandra Wood As a Renewable Alternative Fuel”. International Journal of Electrical, Energy and Power System Engineering 5 (2), 45-49. https://doi.org/10.31258/ijeepse.5.2.45-49.