DAHLIAWATY, D.; ZULMIYETRI, Z.; IRDAMURNI, I.; UTAMI, I. S. Improving Learning of Addition Count Operation through Realistic Mathematics Education Approach for Mildly Retarded Children: Classroom Action Research VII SLB Autisma Mutiara Bangsa Pratama Padang. Edumaspul: Jurnal Pendidikan, v. 7, n. 1, 23 Mar. 2023.