AL-SAMARAI, F.R. Genetic evaluation of breeding efficiency estimated by Tomar ‎equation in Holstein cattle. The Iraqi Journal of Veterinary Medicine, Baghdad, Iraq., v. 31, n. 2, p. 142–150, 2007. DOI: 10.30539/3y3et115. Disponível em: https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1968.. Acesso em: 26 nov. 2025.