H. K. Koohpar, H. Sayyahzadeh, and Z. A. Pirsaraei, “Comparing the Natural Mating with Artificial Insemination (A.I) at Mazandran Native Hen”, Int. J. Poult. Sci., vol. 9, no. 7, pp. 711–715, Jun. 2010, doi: 10.3923/ijps.2010.711.715.