The Effect of Lapbooks on IPAS Instruction on the Topic of Cultural Diversity and Its Impact on the Learning Outcomes of Fourth-Grade Elementary School Students : Pengaruh Media Lapbook Pada Pembelajaran IPAS Materi Keragaman Budaya terhadap Hasil Belajar Siswa Kelas IV Sekolah Dasar. ijemd. 2026;21(3):10.21070/ijemd.v21i3.1167. doi:10.21070/ijemd.v21i3.1167