Indriani, O. and Handayati, Y. 2026. Reducing Procurement Lead Time For Maintenance Spare Parts At Pt Bukit Asam Tbk. EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis. 14, 2 (Apr. 2026), 2549-2564. DOI:https://doi.org/10.37676/ekombis.v14i2.9878.