Dung, P., Hoan, D., Arango, J., Nghia, T., Kien, N., Arevalo, A. and Douxchamps, S. (2020) “Greenhouse Gas Emissions from Piggery and Biogas Digesters in the North of Vietnam”, Vietnam Journal of Agricultural Sciences, 3(4), pp. 843-853. doi: 10.31817/vjas.2020.3.4.07.