Ofianto, O. ., A. . Aman, S. . Sariyatun, B. Bunari, T. Z. N. . Zahra, and M. E. P. Marni. “Media Timeline Development With the Focusky Application to Improve Chronological Thinking Skills”. International Journal of Learning, Teaching and Educational Research, vol. 21, no. 4, Apr. 2022, pp. 114-33, http://www.ijlter.net/index.php/ijlter/article/view/1297.