W.Y, P.; A.H, P. Testing the Equality of the Means of Two Populations with Unequal Variances. Malaysian Journal of Science, [S. l.], v. 26, p. 105–109, 2007. Disponível em: http://ojie.um.edu.my/index.php/MJS/article/view/8733. Acesso em: 23 dec. 2024.