Asshofi, M. F.; Athallah, M. F.; Paramesti, R. R. P.; Shabirah, Z.; Al-Ayyubi, S. B. R.; Abdi, G. P.; Falah, M. System Design Article for the Procurement and Distribution of Cleaning Equipment at the Palembang Mayor’s Office Using the Spiral Method. JUMIN 2026, 7, 846-854.