Jantama, M. 2021. 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, 2 (Dec. 2021), 351–357. DOI:https://doi.org/10.30587/umgeshic.v1i2.3404.