Akomolafe A. A., Olawale A.O., Jennifer . J., and Oladimeji O.A. “Investigating the Quality Performance of Production of Some Selected Drinks Using Hotelling T-Square and Control Chart”. Global Journal of Management and Business Research 20, no. B10 (October 15, 2020): 9–22. Accessed May 4, 2024. https://journalofbusiness.org/index.php/GJMBR/article/view/3245.