et.al, Mohamad Rosni Othman. “The Sustainability Stimulus of Malaysian Seaport Cluster Toward Competitive Vigilance: The Total Quality Management (TQM) Approach”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 3 (April 11, 2021): 1636–1646. Accessed May 2, 2024. https://turcomat.org/index.php/turkbilmat/article/view/983.