Worasan, K., and K. Moonsr. “INTEGRATED VEHICLE ROUTING AND COLLECTION POINT OPTIMIZATION FOR URBAN WASTE MANAGEMENT: A LAGRANGIAN RELAXATION APPROACH WITH WALKING-DISTANCE CONSTRAINTS”. Journal of Advanced Manufacturing Technology (JAMT) 19, no. 2 (August 28, 2025): 31-50. Accessed September 9, 2025. https://jamt.utem.edu.my/jamt/article/view/6860.