Nwaigwe, E., and O. G. Wobo. “Application of Cramer’s Rule and Digital Computing in Analyzing Multiple Linear Regression”. Faculty of Natural and Applied Sciences Journal of Mathematical and Statistical Computing, vol. 2, no. 1, Sept. 2024, pp. 66-73, https://fnasjournals.com/index.php/FNAS-JMSC/article/view/597.