KUMAR, Manoj. Bird Diversity of Poplar (Populus deltoides) based Agroforestry System in Ludhiana, Punjab. Indian Journal of Agroforestry, India, v. 24, n. 2, 2023. Disponível em: https://epubs.icar.org.in/index.php/IJA/article/view/120388. Acesso em: 19 oct. 2025.