Chookani, A., Dadpasand, M., Mirzaei, H., Rokouii, M. & SayadNezhad, M. (2010). An Estimation of Genetic Parameters for some Reproductive Traits and their Relationships to Milk Yield in Iranian Holstein Cattle. (e20932). Iranian Journal of animal Science, 40(4), e20932

Chookani, A., Dadpasand, M., Mirzaei, H., Rokouii, M., & SayadNezhad, M. "An Estimation of Genetic Parameters for some Reproductive Traits and their Relationships to Milk Yield in Iranian Holstein Cattle" .e20932 , Iranian Journal of animal Science, 40, 4, 2010, e20932.

Chookani, A., Dadpasand, M., Mirzaei, H., Rokouii, M., & SayadNezhad, M. (2010). 'An Estimation of Genetic Parameters for some Reproductive Traits and their Relationships to Milk Yield in Iranian Holstein Cattle', Iranian Journal of animal Science, 40(4), e20932.

Chookani, A., Dadpasand, M., Mirzaei, H., Rokouii, M. & SayadNezhad, M., "An Estimation of Genetic Parameters for some Reproductive Traits and their Relationships to Milk Yield in Iranian Holstein Cattle." Iranian Journal of animal Science, 40 4 (2010): e20932,

Chookani A., Dadpasand M., Mirzaei H., Rokouii M., SayadNezhad M. An Estimation of Genetic Parameters for some Reproductive Traits and their Relationships to Milk Yield in Iranian Holstein Cattle. Iranian Journal of animal Science. 2010;40(4):e20932 (In Persian).