Machado, Rui, and Aurino Alves Simplício. 2001. “Evaluation of Hormonal Programs to Induce and Synchronize Estrus in Goats”. Pesquisa Agropecuaria Brasileira 36 (1):171-78. https://doi.org/10.1590/S1678-3921.pab2001.v36.6103.