Ishak, Ghina Afifa, et al. “PENGEMBANGAN MEDIA CERITA GELOMBANG ELEKTROMAGNETIK MELALUI MOBILE LEARNING DENGAN SISTEM OPERASI ANDROID”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), vol. 3, Oct. 2014, pp. 57-61, https://journal.unj.ac.id/unj/index.php/prosidingsnf/article/view/5442.