Prommachan, Irisa, and Kanda Janyam. “Conditions and Needs for Positive Psychological Capital of Sports Students of Thailand National Sports University”. Thammasat Journal 45, no. 2 (August 28, 2026): 140–161. accessed August 30, 2026. https://so05.tci-thaijo.org/index.php/tujo/article/view/277725.