Manurung, Huala Samuel, et al. “COMPARATIVE ANALYSIS OF STUDENTS’ MOTIVATION AND LEARNING ACHIEVEMENT THROUGH PROJECT-BASED LEARNING AND PROBLEM-BASED LEARNING ASSISTED BY INSTRUCTIONAL VIDEOS IN REACTION RATE LEARNING”. Jurnal Ilmu Pendidikan Indonesia, vol. 14, no. 3, Oct. 2026, pp. 158-66, doi:10.31957/jipi.v14i3.5996.