Ando Julkifli Panjaitan; Tumpal Manahara Siahaan; Herlina Hotmadinar Sianipar. THE EFFECT OF DISCOVERY LEARNING MODEL ON STUDENTS’ LEARNING OUTCOMES IN SOCIAL STUDIES FOR GRADE VIII AT SMP PRIVATE TAMANSISWA PEMATANGSIANTAR IN ACADEMIC YEAR 2025 2026. IJSET 2025, 4, 1221-1228.