Arrtile front page not scanned. The Pakistan Development Review, [S. l.], v. 31, n. 4II, p. pp.1050–1061, 1992. DOI: 10.30541/v31i4IIpp.1050-1061. Disponível em: https://thepdr.pk/index.php/pdr/article/view/1115. Acesso em: 26 oct. 2025.