Pavlovski, Zlatica, Zdenka Škrbić, and Miloš Lukić. “Free Systems of Rearing of Chickens and Layer Hens: Quality of Meat and Eggs*”. Scientific journal "Meat Technology" 52, no. 1 (June 24, 2011): 160-166. Accessed June 2, 2025. https://www.journalmeattechnology.com/index.php/meat_technology/article/view/270.