{{cite journal | last1=Castillo-López | first1=R. I. | author2=E. P. Gutiérrez-Grijalva | author3=N. Leyva-López | author4=L. X. López-Martínez | author5=J. B. Heredia1 | year=2017 | title=NATURAL ALTERNATIVES TO GROWTH-PROMOTING ANTIBIOTICS (GPA) IN ANIMAL PRODUCTION | journal=Journal of Animal and Plant Sciences | volume=27 | issue=1 | pages=349-359 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2017-JAPS-45}}