S. S. GILL AND PARGAT SINGH. Professional Knowledge of Dairy Farmers of Ludhiana District. Indian Journal of Extension Education, India, v. 13, n. 3-4, 2024. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/160882. Acesso em: 15 jul. 2026.