Surjadi, Eko, Wijoyo Wijoyo, and Diama Rizky Septiawan. 2025. “Effects of Fuel Injector Seat Angle on Power, Torque, and Exhaust Emissions of a Single-Cylinder Four-Stroke Engine”. International Journal Science and Technology 4 (3):13-26. https://doi.org/10.56127/ijst.v4i3.2347.