{{cite journal | last1=Öztürk | first1=E. | author2=E. Atsan | author3=T. Polat | author4=K. Kara | year=2011 | title=VARIATION IN HEAVY METAL CONCENTRATIONS OF POTATO (Solanum tuberosum L.) CULTIVARS | journal=Journal of Animal and Plant Sciences | volume=21 | issue=2 | pages=235-239 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2011-JAPS-235}}