Akbari Kalesar, A., Seifi-Jamadi, A., Yadi, J., & Kohram, H. "Effect of Butylated Hydroxy Anisole (BHA) and Butylated Hydroxy Toluene (BHT) on semen quality of Ram semen after freeze thawing Process", Iranian Journal of animal Science, 48, 2, 2017, 287–295. doi: 10.22059/ijas.2017.235753.653538