Krishnamoorthy, K, and Gboyega Adepoju. “Optimal Prediction and Tolerance Intervals for the Ratio of Dependent Normal Random Variables”. International Journal of Statistical Sciences 25, no. 1 (April 17, 2025): 11–22. Accessed September 11, 2025. https://www.banglajol.info/index.php/ijss/article/view/81041.