Jantama, Maliwan.
" THE EFFECT OF GROUP PROCESS THROUGH "O4MAT" TECHNIQUE TO COMMUNICATIVE ENGLISH ACHIEVEMENT OF GRADE 7TH STUDENTS" <em>Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC)</em> [Online], Volume 1 Number 2 (22 December 2021)