Chongcharoen, Samruam, Pawat Paksaranuwat, and Kunjira Kingphai. 2022. “One-Sided Multivariate Test for Two Population Means With Common Unknown Covariance Matrices of High-Dimensional Data”. Thailand Statistician 20 (2):412-19. https://ph02.tci-thaijo.org/index.php/thaistat/article/view/246349.