{{cite journal | last1=Ngu | first1=N. T. | author2=N. T. H. Nhan | author3=N. V. Hon | author4=L. T. Danh | author5=Duong Minh Vien | author6=Luu Huynh Anh | author7=Nguyen Hong Xuan | year=2019 | title=EFFECTS OF CONCENTRATE LEVELS AND OIL SUPPLEMENTATION IN DIETS ON RUMEN CHARACTERISTICS AND PERFORMANCE OF CATTLE | journal=Journal of Animal and Plant Sciences | volume=29 | issue=5 | pages=1247-1253 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2019-JAPS-504}}