Muftiati Ahmad CE, Sugiyanto S, Puspitasri L, Ariwibowo T. Effect of Goods and Services Procurement Management with Direct Selection Method on PT Sumberbumi Global Niaga Ship Operations. GIJEA [Internet]. 2023 Sep. 29 [cited 2025 Jan. 5];1(3):469-76. Available from: https://research.e-greenation.org/GIJEA/article/view/59