Ayinde, K, A. F Lukman, and O.T Arowolo. “Combined Parameters Estimation Methods of Linear Regression Model With Multicollinearity and Autocorrelation”. Journal of Asian Scientific Research 5, no. 5 (May 15, 2015): 243–250. Accessed July 3, 2024. https://archive.aessweb.com/index.php/5003/article/view/3724.