{{cite journal | last1=Akram | first1=B. | author2=F. Abbas | author3=M. Ibrahim | author4=M. F. Nawaz | author5=S. I. Zahra | author6=M. R. Salik | author7=H.M. Hammad | year=2017 | title=ABOVE-GROUND CARBON POOLS OF CITRUS ACREAGE IN PAKISTAN | journal=Journal of Animal and Plant Sciences | volume=27 | issue=6 | pages=1903-1908 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2017-JAPS-242}}