Some Comparative Aspects of Production and Profit Functions: Empirical Applications to a Punjab District. The Pakistan Development Review, [S. l.], v. 17, n. 2, p. pp.191–211, 1978. DOI: 10.30541/v17i2pp.191-211. Disponível em: https://thepdr.pk/index.php/pdr/article/view/485. Acesso em: 28 oct. 2025.