Thanh Quan, Pham, Le Thanh Hung, and Tran Ha Thai. 2006. “THEORETICAL STUDY OF THE SPIN DENSITY DISTRIBUTION OF THE GREEN TEA CATECHIN RADICALS”. VNUHCM Journal of Science and Technology Development 9 (11), 69-78. https://doi.org/https://doi.org/10.32508/stdj.v9i11.3124.