. R, Ma’ruf A. The Development of Learning Video Media Based Geogebra for Increasing the Students’ Mathematical Understanding. Jour. Inform. Math. Sci. [Internet]. 2017 Dec. 30 [cited 2024 Apr. 27];9(4):1277-8. Available from: http://www.rgnpublications.com/journals/index.php/jims/article/view/1025