Shorter Notices. The Pakistan Development Review, [S. l.], v. 52, n. 1, p. pp.95–96, 2013. DOI: 10.30541/v52i1pp.95-96. Disponível em: https://www.thepdr.pk/index.php/pdr/article/view/2566. Acesso em: 7 dec. 2025.