Prayitno, Sutrisno, AND 		Salsabila, Nadhifah.
" PENGENDALIAN PROSES PRODUKSI BLACK TEA MELALUI SISTEM SANITATION STANDARD OPERATING PROCEDURES (SSOP) DI PTPN XII WONOSARI-MALANG" <em>JUSTI (Jurnal Sistem dan Teknik Industri)</em> [Online], Volume 3 Number 2 (31 January 2023)