1.
Ratti R. Penerapan Model PBL Untuk Meningkatkan Kemampuan Operasi Hitung Penjumlahan Dan Pengurangan Siswa Kelas I: Application of the PBL Model to improve the ability of Addition and Subtraction Count Operations for Class I students. Neraca J Pendidikan Ekonomi [Internet]. 2021May5 [cited 2024Nov.27];6(2):42-9. Available from: https://journal.umpr.ac.id/index.php/neraca/article/view/2643