{{cite journal | last1=Aguilar-Jiménez | first1=C. E. | author2=A. Tolón-Becerra | author3=X. B. Lastra-Bravo | year=2013 | title=TRADITIONAL AGROECOSYSTEMS VS. ALTERNATIVE AGROECOSYSTEMS IN MAIZE IN CHIAPAS MEXICO | journal=Journal of Animal and Plant Sciences | volume=23 | issue=2 | pages=633-646 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2013-JAPS-244}}