V. D. Joshi, P. . Agarwal, L. . Čepová, H. Alsaud, B. Swarna, and A. . Kumar, “Optimizing Multi-Commodity Fixed-Charge Solid Transportation Under Spherical Fuzzy Environment: A Multi-Objective Perspective”, Contemp. Math., vol. 7, no. 3, pp. 2822–2860, Apr. 2026.