IRHAM MIFTAKHUL JANNAH; MIRA PATLASARI2; FAHRUR RIJAL ARDIYANTO. THE EFFECTIVENESS OF MOBILE PHONE APPLICATION TO IMPROVE GRAMMAR SKILL FOR UNDERGRADUATE STUDENTS. Jurnal Ilmu Pendidikan Muhammadiyah Kramat Jati, [S. l.], v. 2, n. 1, p. 32–34, 2021. DOI: 10.55943/jipmukjt.v2i1.16. Disponível em: https://jurnal.pcmkramatjati.or.id/index.php/JIPMUKJT/article/view/16. Acesso em: 16 aug. 2026.