Roatjanasirikan, Punnawit, Menglim Hoy, and Kwunkamol Donkwa. “Analysis of Work Efficiency Between Contract Workers and Daily Hired Workers of the Construction Contracting Business in Udon Thani Province”. Journal for Strategy and Enterprise Competitiveness 2, no. 6 (December 27, 2023): 63–79. Accessed May 19, 2024. https://so07.tci-thaijo.org/index.php/STECOJournal/article/view/3910.