Mahendro, A., S. Hidayat, and M. Wijayaningtyas. “Quality Risks Performance through Monitoring and Control: The Role of Subcontractor Construction Management at the Gas Unitization Project ”. European Journal of Science, Innovation and Technology, Vol. 4, no. 1, Feb. 2024, pp. 99-107, https://ejsit-journal.com/index.php/ejsit/article/view/366.