Jantama, Maliwan. “THE EFFECT OF GROUP PROCESS THROUGH ‘O4MAT’ TECHNIQUE TO COMMUNICATIVE ENGLISH ACHIEVEMENT OF GRADE 7TH STUDENTS”. Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC) 1, no. 2 (December 22, 2021): 351–357. Accessed June 6, 2025. https://journal.umg.ac.id/index.php/umgeshic/article/view/3404.