Anh, Vuong, 		Dung, Nguyen, 		Chau, Chu, 		Mai, Phan, AND 		Hoan, Nguyen.
" The Isoelectric Point and the Surface Charge of                                  Barium Titanate Nanoparticles/Graphene Oxide Determined Using the Electrophoretic Mobility Technique" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 37 Number 1 (30 March 2021)