Huynh, H., Hoang, T., Nguyen, T., Nguyen, T., Bui, N., On, T., Tran, T. and Lam, L. 2015. Improving the ammonia sensing of reduced graphene oxide film by using metal nano-materials. Science and Technology Development Journal. 18, 3 (Aug. 2015), 72-77. DOI:https://doi.org/https://doi.org/10.32508/stdj.v18i3.822.