I Made Suarsana et al. 2026. Prospective Mathematics Teachers’ Concept Images of Group Structure: From Binary Operations to Axiomatic Coordination. EduMatSains : Jurnal Pendidikan, Matematika dan Sains. 11, 2 (Oct. 2026), 179–194. DOI:https://doi.org/10.33541/edumatsains.v11i2.8643.