Cruz Bermúdez, A., R. WingChing Jones, and R. Zamora Sanabria. “Sex Link Black and Rhode Island Red Hens With Access to Grazing: Productivity and Behavior”. Agronomía Mesoamericana, vol. 32, no. 2, May 2021, pp. 599-18, doi:10.15517/am.v32i2.42487.