{{cite journal | last1=Ahmad1 | first1=R. | author2=M. K. N. Shah | author3=Mahmood-ul-Hassan | author4=D. Ibrar | author5=R. A. Javaid | author6=N. Khan | year=2020 | title=ASSESSMENT OF GENETIC DIVERGENCE AND ITS UTILIZATION IN HYBRID DEVELOPMENT IN CULTIVATED ONION (ALLIUM CEPA L.) | journal=Journal of Animal and Plant Sciences | volume=31 | issue=1 | pages=175-187 | doi=10.36899/JAPS.2021.1.0205 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=AG-19-0337}}