khotimah, khusnul. (2019). Pengembangan Bahan Ajar Berbasis Multimedia Interaktif Pada Materi Bangun Ruang Sisi Lengkung Siswa Kelas Vl. JoEMS (Journal of Education and Management Studies), 2(2), 47-54. Retrieved from http://ojs.unwaha.ac.id/index.php/joems/article/view/104