Fitria, Annisa Novantina Eka, Priyambada Cahya Nugraha, and Lamidi Lamidi. “Snellen Chart Based On Android Control”. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics 1, no. 1 (August 17, 2025): 27–33. Accessed April 19, 2026. http://www.ijeeemi.org/index.php/ijeeemi/article/view/239.