K. . Piriyapun and A. . Pongpreecha, “Application of Geographic Information Systems for Route Optimization in Solid Waste Collection Using the Vehicle Routing Problem (VRP) Method: A Case Study of Tha Kham Subdistrict Municipality, Bang Pakong, Chachoengsao Province”, spurhs, vol. 25, no. 1, pp. 153–170, Jun. 2025.