HASNAIN, S. A. DR. I.H. USMANI AND THE EARLY DAYS OF THE PAEC. The Nucleus, [S. l.], v. 42, n. 1-4, p. 13–20, 2020. Disponível em: http://thenucleuspak.org.pk/index.php/Nucleus/article/view/1052. Acesso em: 3 may. 2024.