Sriwannawit, Porraporn, Arisa Aimrat, Phiyakan Piramruk, Theerathorn Sattayawinich, Kanokporn Pechjaroon, Waraporn Piyatham, Poondharick Iaopanich, Korakot Onthet, Kotchakorn Kitnantakhun, Chalalai Damkrabi, and Phailin Thaworncheep. “Effects of Positive Expiratory Pressure and Breath Stacking Training on Pulmonary Function in Cardiac Surgery Patients: A Randomized Controlled Trial”. Archives of Allied Health Sciences 33, no. 3 (August 9, 2021): 16–28. Accessed May 13, 2024. https://he01.tci-thaijo.org/index.php/ams/article/view/249749.