Hafni, M., Syahputra, E., & Khairani, N. (2021). Development of Interactive Learning Based Discovery Learning to Improve Mathematic Representation and Self-Efficacy Abilities of MAN 1 Medan Students. Jurnal Cendekia : Jurnal Pendidikan Matematika, 5(2), 1201-1213. https://doi.org/10.31004/cendekia.v5i2.575