Matitaputty, C., Nusantara, T., Hidayanto, E. and Sukoriyanto 2024. How mathematics teachers’ special knowledge changing: A case study in the Professional Teacher Education program. Journal on Mathematics Education. 15, 2 (Mar. 2024), 545–574. DOI:https://doi.org/10.22342/jme.v15i2.pp545-574.