Potchanee, Ruangchai, and Tongluck Boontham. “THE NEEDS OF THE DEVELOPMENT OF STEM EDUCATION LEARNING MANAGEMENT FOR SECONDARY SCHOOL TEACHERS IN NAKHON NAYOK PROVINCE”. Journal of Liberal Art of Rajamangala University of Technology Suvarnabhumi 3, no. 3 (November 1, 2021): 285–299. Accessed March 29, 2024. https://so03.tci-thaijo.org/index.php/art/article/view/254666.