LATIF, A. Abdul Latif, Roman Ullah, Muhammad Shah Din and Zulfiqar Ali Anjum. CITY UNIVERSITY RESEARCH JOURNAL, [S. l.], v. 4, n. 2, 2019. Disponível em: http://cusitjournals.com/index.php/CURJ/article/view/46. Acesso em: 6 may. 2024.