Masri Pasaribu, Osco Parmonangan Sijabat and Lisbet Novianti Sihombing 2023. THE INFLUENCE OF TEACHER COMMUNICATION SKILLS IN THE TEACHING AND LEARNING PROCESS ON SOCIAL STUDIES LEARNING OUTCOMES OF CLASS V STUDENTS OF THE SIMALUNGUN STATE SPECIAL SCHOOL (SLB). Pengembangan Penelitian Pengabdian Jurnal Indonesia (P3JI). 1, 2 (May 2023), 26–37.