Sakphet, N., Jitrugtham, C., Bunjan, A. and Pumpuang, C. 2023. Development of a Garbage Disposal Fee Collection Application: A Case Study of La-ngu Subdistrict Administrative Organization, La-ngu District, Satun Province. KKU Science Journal. 51, 3 (Oct. 2023), 238–256. DOI:https://doi.org/10.14456/kkuscij.2023.21.