Bamroongya, M. “Efficacy Comparison Between Laser Lithotripsy (LL) and Pneumatic Lithotripsy (PNL) for Distal Ureteric Calculi”. Journal of Health Science of Thailand, vol. 22, no. 5, Dec. 2017, pp. 758-64, https://thaidj.org/index.php/JHS/article/view/900.