Sirait, A. R., Tarigan, D., Simanungkalit, E., Mailani, E., & Winara, W. (2024). DEVELOPMENT OF POP-UP BOOK MEDIA FOR SPATIAL CONSTRUCTION MATERIALS FOR FOURTH GRADE STUDENTS AT STATE ELEMENTARY SCHOOL 121309 GURILLA PEMATANGSIANTAR. Jurnal Merah Putih Sekolah Dasar, 1(1), 18-26. https://doi.org/10.24114/jmpsd.v1i1.56072