{{cite journal | last1=Iqbal | first1=Z. M. | author2=M. Abdullah | author3=K. Javed | author4=M. A. Jabbar | author5=Y. A. Ditta | year=2018 | title=EVALUATING VARYING LEVELS OF CONCENTRATE ON PRODUCTIVE AND METABOLIC PERFORMANCE OF NILI-RAVI BUFFALO HEIFER CALVES | journal=Journal of Animal and Plant Sciences | volume=28 | issue=5 | pages=1256-1262 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2018-JAPS-505}}