سهير محمد أحمد محمود; أشرف محمد أحمد علي. IQ of identical and non-identical twins (Field study in Khartoum State). University of Sinnar Journal for Human Sciences, [S. l.], v. 2, n. 1, 2021. Disponível em: http://ojs.uofs.edu.sd/index.php/SiOJSHS/article/view/25. Acesso em: 23 nov. 2024.