{{cite journal | last1=Linh | first1=Le Truc | author2=Pai Po Lee | author3=Ke Chung Peng | author4=Rebecca H. Chung | year=2019 | title=TECHNICAL AND COST EFFICIENCY ESTIMATES OF RICE PRODUCTION IN VIETNAM: A TWO-STAGE DATA ENVELOPMENT ANALYSIS | journal=Journal of Animal and Plant Sciences | volume=29 | issue=1 | pages=299-305 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=AGECO-17-0015}}