Rofiq, Sholahudin, Roland Y.H. Silitonga, and Dhany Heryanto. “The Influence of Project Management Knowledge and Leadership Style on the Success of Groundwater Drilling Projects at PT SII”. Journal of Management Studies and Development 4, no. 03 (September 1, 2025): 238–251. Accessed October 8, 2026. https://journal.iistr.org/index.php/JMSD/article/view/1149.