Ruangjan, Ratchadaporn, Phechnoy Singchungchai, and Kannikar Chatdokmaiprai. 2022. “Cost Analysis of Nursing Activities for Out Patient Department Lithotripsy Patients at a Tertiary Hospital”. NU Journal of Nursing and Health Sciences 16 (3):134-46. https://he01.tci-thaijo.org/index.php/NurseNu/article/view/258383.