Ilham, Habir, and Tukimun. “An Integrated Critical Path Method and PERT Approach for Schedule Performance Evaluation of Drainage Construction Projects”. International Journal of Industrial Engineering, Technology & Operations Management 3, no. 2 (December 31, 2025): e114. Accessed April 6, 2026. https://ejournals.indoacademia-society.com/index.php/ijietom/article/view/114.