Saitulaa Naranong และ Surapong Auwatanamongkol. (2021) Efficacy of pixel swap-based steganographic algorithms in grayscale images. National Institute of Development Administration:ม.ป.ท.Saitulaa Naranong และ Surapong Auwatanamongkol. 2021. Efficacy of pixel swap-based steganographic algorithms in grayscale images. ม.ป.ท.:National Institute of Development Administration;Saitulaa Naranong และ Surapong Auwatanamongkol. Efficacy of pixel swap-based steganographic algorithms in grayscale images. ม.ป.ท.:National Institute of Development Administration, 2021. Print.