Singharatanasiri , A., & Kanchanathaweekul, T. (2019). COMPETITIVE STATE ANXIETY AND MOTIVATIONAL CLIMATE IN THAI PROFESSIONAL FOOTBALL PLAYERS. Academic Journal of Thailand National Sports University, 11(3), 97–108. retrieved from https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/244565