ENGINE PERFORMANCE ANALYSIS OF PALM KERNEL OIL-BASED BIODIESEL BLENDS ON SPEED VARIATIONS OF A 4-CYLINDER ENGINE AT CONSTANT TORQUE. JARMCE [Internet]. 2023 Apr. 10 [cited 2025 Aug. 21];9(4):6-11. Available from: https://jarmce.com/index.php/mce/article/view/55