{{cite journal | last1=Naz | first1=S. | author2=M. Javed | year=2013 | title=STUDIES ON THE TOXIC EFFECTS OF LEAD AND NICKEL MIXTURE ON TWO FRESHWATER FISHES, CTENOPHARYNGODON IDELLA AND HYPOPHTHALMICHTHYS MOLITRIX | journal=Journal of Animal and Plant Sciences | volume=23 | issue=3 | pages=798-804 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2013-JAPS-320}}