1.Sao NK, Hoa NN, At PV. AN EFFECTIVE REVERSIBLE DATA HIDING METHOD BASED ON PIXEL-VALUE-ORDERING. J. Comput. Sci. Cybern. [Internet]. 2020 May 11 [cited 2025 Nov. 3];36(2):139-58. Available from: https://jcc.vast.vn/jcc/article/view/14084