Putri, A. F., & Hasan Bisri. (2026). Lean Service Analysis to Identify And Minimize Waste in PT XYZ Non-Production and Investment Procurement Process using Value Stream Mapping. Journal of Artificial Intelligence and Engineering Applications (JAIEA), 5(2), 2851–2860. https://doi.org/10.59934/jaiea.v5i2.2029