Medugu, P. M., Y. A. Mohammed, and H. B. Rann. “Relative Efficiency of Some Tests of Two Population Means under Violation of Homoscedacity Assumptions”. The International Journal of Science & Technoledge, vol. 9, no. 5, May 2021, doi:10.24940/theijst/2021/v9/i5/ST2105-002.