Semwimol, K., sirichaichan Fukjumroon, S. Sukontasup, and W. Cheechurn. “The Effects of the First Monkol Intensive Muay-Thai Study Curriculum on Health-Reklated Physical Fitness, Thai Martial Art’s Skills and Attitudes of Second Key Stage Students in Bangkok Metropolis Schools”. Academic Journal of Thailand National Sports University, vol. 5, no. 3, Sept. 2013, pp. 161-72, https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/255467.