ARIFIN, Y.; WIDJAJA, N. W.; AWANG, N. K.; IRWAN, S. S. Penerapan Interactive Multimedia untuk Perangkat Ajar Persiapan Toefl Berbahasa Indonesia. ComTech: Computer, Mathematics and Engineering Applications, [S. l.], v. 5, n. 2, p. 601-610, 2014. DOI: 10.21512/comtech.v5i2.2194. Disponível em: https://journal.binus.ac.id/index.php/comtech/article/view/2194. Acesso em: 30 mar. 2025.