Kamonkuananon, Siwat. “A STUDY ON CHARACTERISTICS AND SAFETY PROGRAM SELECTION IN MEDIUM AND SMALL CONSTRUCTION PROJECTS”. Life Sciences and Environment Journal 20, no. 2 (November 13, 2019): 256–267. Accessed April 20, 2024. https://ph01.tci-thaijo.org/index.php/psru/article/view/178527.