Muhammad Alfi Nur Rifki and Fauzan Romadlon (2026) “Implementasi Lean Manufacturing Guna Pengurangan Waste Pada Proses Pengemasan Semen di PT STAR”, Prosiding Seminar Nasional Waluyo Jatmiko, 18(1), pp. 165–174. doi: 10.33005/wj.v18i1.158.