Hasibuan, A. A. (2020) “EFFORTS TO IMPROVE THE LEARNING RESULTS OF REJECTED BULLETS THROUGH THE MODIFICATION OF LEARNING MEDIA IN VII GRADE STUDENTS OF SMP NEGERI 3 PERCUT SEI TUAN, 2014/2015 ACADEMIC YEAR”, Journal Physical Health Recreation (JPHR), 1(1), pp. 24-28. doi: 10.55081/jphr.v1i1.158.