Kanchanathaweekul, Thawatchai, and Pratoom Muangmee. “Effects of Endurance Training and Breath-holding Training on Breath-holding Time, Maximal Oxygen Uptake, Lung Capacity, Red Blood Cell and White Blood Cell Counts”. Journal of Exercise and Sport Science 5, no. 1 (January 1, 2008): 1–16. accessed September 14, 2026. https://he01.tci-thaijo.org/index.php/buuss/article/view/86724.