Anuchaivong, P., P. Yatakoat, J. Meksawang, P. Wichaiyo, and P. Chaichan. “STUDENTS’ SATISFACTION IN LEARNING AND TEACHING MATHEMATICS OF HIGH SCHOOL IN MUANG DISTRICT, NAKHON PHANOM PROVINCE”. Journal of MCU Nakhondhat, vol. 7, no. 9, Sept. 2020, pp. 394-08, https://so03.tci-thaijo.org/index.php/JMND/article/view/246751.