Sulaiman, J. M. “ Pengaruh Media Belajar Smartphone Terhadap Belajar Siswa Di Era Pandemi Covid-19: (The Influence of Smartphone Learning Media on Student Learning in The Era Pandemi Covid-19)”. Indonesian Educational Administration and Leadership Journal (IDEAL), vol. 2, no. 2, Nov. 2020, pp. 94-106, doi:10.22437/ideal.v2i2.10465.