Idris, M., Hermawan, I. and Sihombing, V. 2022. The Effect of the Combination of Candlenut Shells and Shells Coconut Against Calorific Value of Briquettes. IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA). 1, 2 (Sep. 2022), 35–44. DOI:https://doi.org/10.56862/irajtma.v1i2.22.