M. Fitri dan L. Jumatri, “Students’ preferences in reading  English digital materials vs printed materials”, HPBS, vol. 2, no. 1, hlm. 34–42, Jun 2026, Diakses: Okt 02, 2026. Tersedia pada: https://ejournal-fkip.unisi.ac.id/horizon/article/view/3673