สุทธิศักดิ์ สถาพัฒน์. “THE INFLUENCE OF ROADS MANAGEMENT AFFECTING THREE SOUTHERN PROVINCES DEVELOPMENT”. Journal of MCU Nakhondhat 6, no. 2 (April 30, 2019): 991–1010. accessed October 4, 2026. https://so03.tci-thaijo.org/index.php/JMND/article/view/154205.