NUGRAHA, Ramdan; IRIANI , Yani. Quality Control in Coconut Sorting Process using Statistical Process Control (SPC) and Root Cause Analysis (RCA) (Case Research: UMKM Wika Kelapa). Journal Research of Social Science, Economics, and Management, [S. l.], v. 5, n. 1, p. 2655–2674, 2025. DOI: 10.59141/jrssem.v5i1.960. Disponível em: https://jrssem.publikasiindonesia.id/index.php/jrssem/article/view/960. Acesso em: 5 dec. 2025.