Prakash, Ritha, and Nivetha Martin. “Economic Production Inventory Model With the Associated Costs of Internet Advertising to Acquire Customers Residing Worldwide”. INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 12, no. 9 (March 14, 2014): 3921–3926. Accessed July 22, 2024. https://rajpub.com/index.php/ijct/article/view/2833ijct.