H, A. N., A. A, H. A. S, and D. Chengappa. “Oculography: A Review”. Perspectives in Communication, Embedded-Systems and Signal-Processing - PiCES, vol. 3, no. 4, Aug. 2019, pp. 36-37, http://pices-journal.com/ojs/index.php/pices/article/view/194.