Prompatima, Kanitnun, Prof.Dr.Boonreang Kajornsin, and Dr.Taneenart Na-soontorn. “The Development of Transformational Leadership Training Program for The Student Leaders of Navamindarajudis Schools Group”. Saengtham College Journal 12, no. 1 (June 30, 2020): 15–35. accessed May 21, 2025. https://so01.tci-thaijo.org/index.php/scj/article/view/245134.