Summaries of the Selected Articles. The Pakistan Development Review, [S. l.], v. 3, n. 2, p. pp.306–327, 1963. DOI: 10.30541/v3i2pp.306-327. Disponível em: https://thepdr.pk/index.php/pdr/article/view/69. Acesso em: 28 oct. 2025.