GUNAWAN, Rony; AGUNG BIMANTORO, Fransiskus; VICTOR, Jepri; P SITOMPUL, Heri; PURNOMO, Andis. Peningkatan Produktivitas Excavator PC 500 Melalui Implementasi Metode Quality Control Circle (QCC): Studi Kasus di Kontraktor Pertambangan Batubara. Jurnal Pendidikan Indonesia, [S. l.], v. 6, n. 12, p. 5652–5661, 2025. DOI: 10.59141/japendi.v6i12.9127. Disponível em: http://www.japendi.publikasiindonesia.id.solusipublish.com/index.php/japendi/article/view/9127. Acesso em: 30 dec. 2025.