Tuan T, Yin T, Cuong T, Tiep N, König S. Production Efficiency Analysis of Indigenous Pig Production in Northwest Vietnam. vjas [Internet]. 31Dec.2020 [cited 20Apr.2024];3(4):882-91. Available from: https://vjas.vnua.edu.vn/index.php?journal=vjas&page=article&op=view&path[]=167