Singharatanasiri , A. and Kanchanathaweekul, T. (2019) “COMPETITIVE STATE ANXIETY AND MOTIVATIONAL CLIMATE IN THAI PROFESSIONAL FOOTBALL PLAYERS”, Academic Journal of Thailand National Sports University. Chonburi, Thailand, 11(3), pp. 97–108. available at: https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/244565 (accessed: 19 September 2026).