Prasertsuko, Kridsada, and Pronsuk Hoonnirun. “DEVELOPMENT OF SAFE WORK MODEL FOR MAINTENANCE CONTRACTORS, IN PETRPCHEMICAL INDUSTRY, AT MAP TA PHUT INDUSTRIAL ESTATE AREA, RAYONG PROVINCE”. Journal of MCU Nakhondhat 12, no. 5 (May 25, 2025): 249–262. accessed December 6, 2025. https://so03.tci-thaijo.org/index.php/JMND/article/view/288716.