Tri Wibowo, A., and N. U. Handayani. “PENERAPAN LEAN SUPPLY CHAIN PADA PROSES LOADING PUPUK IN BAG DI PELABUHAN PT. PETROKIMIA GRESIK”. Proceeding SENDI_U, 1, https://www.unisbank.ac.id/ojs/index.php/sendi_u/article/view/4185.