Maflahah, Iffan, et al. “Controlling Vaname Shrimp (Litopenaeus Vannamei) Raw Material Inventories (Case Study at PT. Grahamakmur Ciptapratama Sidoarjo): Pengendalian Persediaan Bahan Baku Udang Vaname (Litopenaeus Vannamei) (Studi Kasus Di PT. Grahamakmur Ciptapratama Sidoarjo)”. PROZIMA (Productivity, Optimization and Manufacturing System Engineering), vol. 4, no. 1, Mar. 2021, pp. 37-46, doi:10.21070/prozima.v4i1.1273.