Rayos, A. A., Consignado, A. F., Valdez, C. A., Bautista, J. A. N., & Marcial, D. B., Jr. (2003). Reproductive performance of dairy cows as influenced by gonadotrophin-releasing hormone and prostaglandin F2 alpha treatment. Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist).

Rayos, A. A., A. F. Consignado, C. A. Valdez, J. A. N. Bautista, and D. B. Marcial, Jr. "Reproductive Performance of Dairy Cows as Influenced by Gonadotrophin-releasing Hormone and Prostaglandin F2 Alpha Treatment." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) 2003.

Rayos, A. A., et al. "Reproductive Performance of Dairy Cows as Influenced by Gonadotrophin-releasing Hormone and Prostaglandin F2 Alpha Treatment." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist), 2003.