Pujinda, Sirintorn, and Ekkaporn Rakkwamsuk. 2019. “Achievement of Project Management of The Mass Rapid Transit System in Bangkok Metropolitan Area. Case Study: Mass Rapid Transit Authority of Thailand (MRTA)”. Mahachula Academic Journal 6 (2). Bangkok, Thailand:125-41. https://so04.tci-thaijo.org/index.php/JMA/article/view/192795.