ANWAR, Jabran, Athar MAHMUD, Hafiz Muhammad ISHAQ, S Ahmad, Ehsaan Ullah KHAN, Muhammad WAQAS, Muhammad USMAN, и Muhammad ZAID. «Later Exposure to Different Perch Material and Design Affects Behaviour and Performance of Leghorn Hens». Journal of the Hellenic Veterinary Medical Society 75, no. 1 (апрель 19, 2024): 6847–6854. просмотрено октябрь 18, 2025. https://ejournals.epublishing.ekt.gr/index.php/jhvms/article/view/32591.