khunkitti, kit, Pramsak Kraithong, and Napasorn Jeenkuan. “AGGRESSION IN SPORT AND MENTAL TOUGHNESS OF FOOTBALL PLAYERS AT UTTARADIT RAJABHAT UNIVERSITY”. Academic Journal of Thailand National Sports University 16, no. 2 (June 24, 2024): 37–48. accessed October 4, 2026. https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/260824.