Mahfudy, S., Wahyu, K., Mauliddin, M., Sucipto, L., Evendi, E. and Irpan, S. (2019) “Characters and values in mathematics teaching and learning: A review of researches in Indonesia”, Beta: Jurnal Tadris Matematika, 12(1), pp. 60-81. doi: 10.20414/betajtm.v12i1.237.