Aydadenta, H. et al. 2016. Steganografi Menggunakan Blok Permutasi dan Algoritma Particle Swarm Optimization (PSO). Indonesian Journal on Computing (Indo-JC). 1, 2 (Dec. 2016), 57–66. DOI:https://doi.org/10.21108/INDOJC.2016.1.2.89.