Dieu, Nguyen Van, and Ngo Tri Duong , translators. “Construction of a VPN System for Remote Programming and Monitoring of Environmental Parameters for Serving Plant Production in Greenhouses”. Vietnam Journal of Agricultural Sciences, vol. 2, no. 1, June 2019, pp. 343-55, https://doi.org/10.31817/vjas.2019.2.1.05.