{{cite journal | last1=Tufail | first1=M.S. | author2=G.L. Krebs | author3=J. Ahmad | author4=A. Southwell | author5=J.W. Piltz | author6=P.C. Wynn | year=2018 | title=THE EFFECT OF RHIZOBIUM SEED INOCULATION ON YIELDS AND QUALITY OF FORAGE AND SEED OF BERSEEM CLOVER (TRIFOLIUM ALEXANDRINUM L.) AND ITS IMPACT ON SOIL FERTILITY AND SMALLHOLDER FARMER’S INCOME | journal=Journal of Animal and Plant Sciences | volume=28 | issue=5 | pages=1493-1500 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2018-JAPS-532}}