{{cite journal | last1=Çelik | first1=E. | author2=A. Durmuş | year=2020 | title=NONLINEAR REGRESSION APPLICATIONS IN MODELING OVER-DISPERSION OF BIRD POPULATIONS | journal=Journal of Animal and Plant Sciences | volume=30 | issue=2 | pages=345-354 | doi=10.36899/JAPS.2020.2.0054 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=ZLG-18-0029}}