Chuenchomnakjad S, Promseenong P, Sema P. Creation and Efficiency Determination of a Modular Refrigeration and Air Conditioning Practice Set According to the National Skilled Labor Standards. JTechEE [Internet]. 2024 Jan. 3 [cited 2024 May 16];15(1). Available from: https://so10.tci-thaijo.org/index.php/FTEJournal/article/view/887