{{cite journal | last1=Liu | first1=B. | author2=Y. Zhou | author3=Y. Li | year=2015 | title=THE ANALYSIS OF THE ACCUMULATION OF FOUR KINDS OF ATMOSPHERIC POLLUTION ELEMENTS IN FIFTEEN KINDS OF LANDSCAPE PLANT LEAVES | journal=Journal of Animal and Plant Sciences | volume=25 | issue=3 | pages=213-219 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-332}}