1. F. Abramovich and Y. Ritov, Statistical Theory: A Concise Introduction (CRC, New York, 2013).
2. G. Casella and R. L. Berger, Statistical Inference. Cengage Learning, Springer Series in Statistics (Springer, New York, 2021).
3. E. Mooi, M. Sarstedt, and I. Mooi-Reci, Regression Analysis (Market Research, Springer, 2018), p. 215.
4. J. O. Rawlings, S. G. Pantula, and D. A. Dickey, Applied Regression Analysis: A Research Tool (Springer Science, New York, 2001).
5. A. Gupta, A. Sharma, and D. A. Goel, Int. J. Eng. Res. Technol. 6, 58 (2017).