Janah, N.A. et al. 2026. Mathematical Reasoning in Jemparingan: An Ethnographic Study of Ratio, Acute Angles, and Integer Operations in a Javanese Archery Tradition. Journal of Honai Math. 9, 1 (Apr. 2026), 1–24. DOI:https://doi.org/10.30862/jhm.v9i1.1247.