Lastri L. USE OF CONCRETE OBJECTS LEARNING MEDIA TO IMPROVE MATHEMATICS LEARNING OUTCOMES MATERIAL FOR COUNTING OPERATIONS DIVISION OF TWO-DIGRAM NUMBERS IN CLASS II STUDENTS OF SDN BENDUNGAN HILIR 01. JECE [Internet]. 2023Nov.8 [cited 2024Sep.8];3(2). Available from: https://jurnalpengabdian.com/index.php/jece/article/view/799