Cornellya Nelly. Upaya Peningkatan Motivasi Belajar Siswa Kelas 4 Materi PAK Melalui Metode Problem Based Learning (PBL) di SD Negeri 25 Gonis Rabu . SEMNASPA [Internet]. 2023 Nov. 20 [cited 2024 Dec. 22];4(2):1788-95. Available from: https://badanpenerbit.org/index.php/SEMNASPA/article/view/1396