Trimarjoko A, Fathurohman DMH, Suwandi S. Metode Value Stream Mapping dan Six Sigma untuk Perbaikan Kualitas Layanan Industri di Automotive Services Indonesia. IJIEM [Internet]. 2020 Jun. 30 [cited 2026 Jun. 3];1(2):91-104. Available from: https://publikasi.mercubuana.ac.id/index.php/ijiem/article/view/8873