Sudadio, S., and D. Kalberg. “Comparative Effectiveness of AIR (Auditory, Intellectually, Repetition) and Realistic Mathematics Education Approaches on Students’ Mathematical Reasoning Ability”. Interval: Indonesian Journal of Mathematical Education, Vol. 4, no. 1, May 2026, pp. 14-19, doi:10.37251/ijome.v4i1.3063.