H. R. Ganesha, P. S. Aithal, and P. Kirubadevi. “An Integrated Framework to Derive Optimal Number of Sales Personnel for a Retail Store”. International Journal of Applied Engineering and Management Letters (IJAEML), vol. 4, no. 1, Apr. 2020, pp. 41-50, https://supublication.com/index.php/ijaeml/article/view/453.