PENGARUH VARIASI BENTUK BRIKET ARANG BIOMASSA BERBAHAN LIMBAH KAYU TERHADAP NILAI KALOR DAN BOILING TIME : THE EFFECT OF VARIATIONS IN THE SHAPE OF BIOMASS CHARCOAL BRIQUETTES MADE FROM WOOD WASTE ON CALORIFIC VALUE AND BOILING TIME . empd [Internet]. 2025 May 29 [cited 2025 Oct. 9];4(1):239-46. Available from: https://journal.unram.ac.id/index.php/empd/article/view/6805