NURSYAHBANI, Zahra; SARI, Theodora Edita; WINARNO, Winarno. Proposed Reduction of Piston Cup Forging Defects Using Fishbone Diagrams, FMEA and 5W+1H in Vehicle Spare-parts Companies. Go-Integratif : Jurnal Teknik Sistem dan Industri, [S. l.], v. 4, n. 01, p. 22–32, 2023. DOI: 10.35261/gijtsi.v4i01.8703. Disponível em: https://www.ftunsika.id/index.php/gointegratif/article/view/8703. Acesso em: 9 mar. 2026.