N. R. Abdulla and K. K. Karim, “Effect of using different levels of egg shell as calcium sources in broiler diet on growth performance, blood parameters, and bone characteristics ”, Kufa Jour. Agri. Sci., vol. 16, no. 2, pp. 41–54, Jun. 2024, doi: 10.36077/kjas/2024/v16i2.11034.