Gapura Bhagya, T., Maulidya, R., Moengin, P. . and Cahyati, S. (2026) “Soft Systems Methodology as a Conceptual Framework for Vehicle Routing Problem: (Case Study of the Indonesian Fertilizer Industry)”, Spektrum Industri, 24(1), pp. 161–175. doi: 10.12928/si.v24i1.584.