Feby Indayani,  Mulyana, Zumrotul Avifa Kasjib and Nirmala Dewi 2025. “The Implementation of Project Based Learning Model in CAD/CAM Instruction to Improve Learning Outcomes of Mechanical Engineering Students”. International Journal of Health, Economics, and Social Sciences (IJHESS). 7, 3 (Aug. 2025). DOI:https://doi.org/10.56338/ijhess.v7i3.8231.