Impact of Mechanization on Productivity of Major Grain Crops in Punjab (Pakistan). Journal of Asian Development Studies, [S. l.], v. 12, n. 4, p. 634–640, 2023. DOI: 10.62345/. Disponível em: https://poverty.com.pk/index.php/Journal/article/view/86.. Acesso em: 22 jul. 2024.