Pratanaphon, S., Ananwattanakij, K. and Namwong, P. (2015) “Vital Capacity and Inspiratory Muscle Strength of Individuals with Mental Retardation : a comparative Study”, Journal of Associated Medical Sciences, 34(2), p. 98. Available at: https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60315 (Accessed: 19 May 2024).