M. K. Turkyilmaz, A. Nazligul, M. Balkaya, and E. F. Dereli, “Effect of Human Factor on Fear and Stress Reactions and Some Performance Parameters in Broiler Chickens”, Int. J. Poult. Sci., vol. 9, no. 1, pp. 59–62, Dec. 2009, doi: 10.3923/ijps.2010.59.62.