1.
Rintia R, Sylvia I. Validitas Lembar Kerja Peserta Didik (LKPD) Sosiologi Menggunakan Model Problem Based Learning (PBL) Materi Perubahan Sosial. nd [Internet]. 2024 Jun. 14 [cited 2026 Apr. 18];3(2):116-25. Available from: https://naradidik.ppj.unp.ac.id/index.php/nara/article/view/206