Matudan, Levi, Vanessa Caronan, Michael Angelo Parongan, Vivian Salvador, Randolph Louie Estrada, Roque Almojuela, and Christian Jerome Espeña. 2020. “Inventory System for Zonan Construction Supply”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research 2 (1). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/2301.