Wittaya, Thongsai. “AN INTERNAL SUPERVISION MODEL FOR DEVELOPING STUDENTS’ DESIRABLE CHARACTERISTICS IN DISCIPLINE”. Journal of MCU Nakhondhat 13, no. 10 (September 26, 2026): 327–340. accessed September 28, 2026. https://so03.tci-thaijo.org/index.php/JMND/article/view/303164.