Factor Inputs Use and Farm Productivity on Different Farm Categories in the Punjab. The Pakistan Development Review, [S. l.], v. 17, n. 3, p. pp.316–332, 1978. DOI: 10.30541/v17i3pp.316-332. Disponível em: https://thepdr.pk/index.php/pdr/article/view/494. Acesso em: 26 oct. 2025.