Sinaga, Calvin, Wawan Purwanto, M. Yasep Setiawan, and Ahmad Arif. 2026. “Comparative Exhaust-Gas Characteristics of Sugarcane Bagasse and Pineapple Waste Bioethanol Blends in a Fuel-Injected Motorcycle under a Common HHO-System Configuration”. MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering 8 (2), 143-58. https://doi.org/10.46574/motivection.v8i2.608.