Rif'at, M. and Khalimi, S. 2020. THE DEVELOPMENT OF MATHEMATICS TEACHING AND LEARNING PROCESS: AN APPLICATION OF ACTION RESEARCH. Bestari: Jurnal Pendidikan dan Kebudayaan. 1, 2 (Aug. 2020), 1–35. DOI:https://doi.org/10.46368/bjpd.v1i2.200.