{{cite journal | last1=Zona | first1=Z. | author2=Z. Ali | author3=I. Zainab | author4=S. Sidra S. T. Raza | author5=M. Ahmad K. Aziz | author6=Z. A. Nasir | author7=I. Colbeck | year=2015 | title=CHANGES IN PARTICULATE MATTER CONCENTRATIONS AT DIFFERENT ALTITUDINAL LEVELS WITH ENVIRONMENTAL DYNAMICS | journal=Journal of Animal and Plant Sciences | volume=25 | issue=3 | pages=NA | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-655}}