Chairul Alfatory, Bintang Rafly Aryansyah, Mahendra Mahendra, Andhika Danisvara, Yudi Prastyo. Improvement of the Early, Middle and Final Patrol Check Process From Manual to Digital with the PDCA Method, Fishbone Diagram, and Why-Why Analysis at PT. Automotive Components Company. IJMECIE [Internet]. 2026 Jan. 26 [cited 2026 Jul. 19];3(1):01-13. Available from: https://international.aritekin.or.id/index.php/IJMECIE/article/view/386