Mirian, E.S. and Salimi, E.A. 2025. THE IMPACTS OF TEACHER SUPPORTIVE MOTIVATIONAL DISCOURSE INTERVENTION ON LANGUAGE ACHIEVEMENT: MASTERY- VS PERFORMANCE-AVOIDANT EAP LEARNERS. TEFLIN Journal. 36, 1 (Jul. 2025), 118–136. DOI:https://doi.org/10.15639/teflinjournal.v36i1/118-136.