Nachiangmai W, Wunchaisatira D, Yodnin S, Somboon I. A Comparative Analysis of Software Quality and Development Cost for a Community Elderly Database System A Case Study Comparing Four Development Approaches Using the Personal Software Process (PSP). BMV. 2026;1(I):27-42. Accessed July 29, 2026. https://benjamit.thonburi-u.ac.th/ojs/index.php/bmv16/article/view/426