Saepuddin, A. and Muhammad Khoirur Roziqin 2026. THE EFFECT OF WOOD POWDER COMPOSITION AND PARTICLE SIZE ON THE ROUGHNESS OF CO₂ LASER BIOCOMPOSITES. Indonesian Journal of Engineering and Technology (INAJET). 8, 2 (Jul. 2026), 26–31. DOI:https://doi.org/10.26740/inajet.v8n2.p26-31.