ยุพัฒน์ พัษฐ์ชิยาดา. “Factors That Are a Problem in the Efficiency of Construction Supervision in Phnom Penh, Cambodia”. Pathumthani University Academic Journal 11, no. 1 (June 14, 2019): 25ุ6–266. Accessed April 25, 2024. https://so05.tci-thaijo.org/index.php/ptujournal/article/view/191659.