Safuan, Safuan dan Budiandru, Budiandru dan Rudi Kurniawan Arief, Rudi dan Erry Yulian T. Adesta, Erry   Web Based E-Catalog Implementation at TPK-KOJA: Case Study of Stock Inventory Division.  Web Based E-Catalog Implementation at TPK-KOJA: Case Study of Stock Inventory Division, 29 (7).  pp. 481-488.  ISSN 2207-6360