Taufik DA, Fahturizal IM. Value Stream Mapping (VSM) Implementation as an Effort to Reduce Delays in the Procurement Process at PT DI. IJIEM [Internet]. 2021 Oct. 3 [cited 2026 Jun. 29];2(3):198-210. Available from: https://publikasi.mercubuana.ac.id/index.php/ijiem/article/view/11875