Ahmed Ali, M. ., M. . Khamees Mustafa, and A. . A. Alani. “Hiding Information Using Circular Distribuition”. Mustansiriyah Journal for Sciences and Education, vol. 16, no. 1, Sept. 2020, pp. 101-14, https://edumag.uomustansiriyah.edu.iq/index.php/mjse/article/view/189.