Prayitno, S., & 		Salsabila, N.
2023 Jan 31.  PENGENDALIAN PROSES PRODUKSI BLACK TEA MELALUI SISTEM SANITATION STANDARD OPERATING PROCEDURES (SSOP) DI PTPN XII WONOSARI-MALANG. JUSTI (Jurnal Sistem dan Teknik Industri). [Online] 3:2