{{cite journal | last1=Rehman | first1=A. | author2=M. T. Azhar | author3=2 | year=2020 | title=GENETIC ASSESSMENT OF CHLOROPHYLL A AND B, CAROTENOIDS AND STOMATAL CONDUCTANCE IN LEAF TISSUE OF UPLAND COTTON IN WATER STRESS CONDITIONS | journal=Journal of Animal and Plant Sciences | volume=31 | issue=1 | pages=108-120 | doi=10.36899/JAPS.2021.1.0199 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=AG-19-0143}}