Hartatik, Sri, Pance Mariati, Nafiah Nafiah, Afib Rulyansah, and Siti Maghfirotun Amin. 2022. “Pengenalan Metode BEBER (Belajar Sambil Bermain) Matematika Bagi Guru-Guru Maarif Di Surabaya”. Indonesia Berdaya 4 (1):49-54. https://doi.org/10.47679/ib.2023376.