Rintia, R., & Sylvia, I. (2024). Validitas Lembar Kerja Peserta Didik (LKPD) Sosiologi Menggunakan Model Problem Based Learning (PBL) Materi Perubahan Sosial. Naradidik: Journal of Education and Pedagogy, 3(2), 116-125. https://doi.org/10.24036/nara.v3i2.206