This research aims to describe the increasing of the students' Indonesian
communicative competence and the collaboration between the lecturer and teacher in
establishing the students' Indonesian communicative competence. This research was
conducted using qualitative-method. The sources of data were collected from informants
and were determined through criterion-based-selection. The data were taken through
deep interview and direct observation. Then they were analyzed by interactive-method
and served in description-based on domain analysis. This research concludes that the
teachers who have positive perception can increase the students' Indonesian commu-nicative competence. The effective interactions in the Indonesian teaching in this
research is multi directions and students' Indonesian communicative competence was
shown by grammatical competence, sociolinguistic competence, and discourse com-petenc
