M. Yoruk, M. Gul, A. Hayirli, and M. Karaoglu, “Laying Performance and Egg Quality of Hens Supplemented with Sodium Bicarbonate During the Late Laying Period”, Int. J. Poult. Sci., vol. 3, no. 4, pp. 272–278, Mar. 2004, doi: 10.3923/ijps.2004.272.278.