Ramli, R., H. Arof, F. Ibrahim, M. Y. I. Idris, and A. Khairuddin. “Classification Of Eyelid Position And Eyeball Movement Using Eeg Signals”. Malaysian Journal of Computer Science, vol. 28, no. 1, Mar. 2015, pp. 28-45, https://mjcs.um.edu.my/index.php/MJCS/article/view/6853.