Ningsih AK, Nasution N, Kusuma Dayu DP. Pengaruh Model Problem Based Learning Terhadap Hasil Belajar IPAS Materi Indonesiaku Kaya Raya Kelas 5 SD. Cetta [Internet]. 2024 Oct. 25 [cited 2024 Dec. 22];7(4):161-9. Available from: https://jayapanguspress.penerbit.org/index.php/cetta/article/view/3706