Juanak, Kaewta, Withun Phuengrattana, Warin Sripanya, and Wanpen Chantarangsi. 2026. “Enhancing Pre-Service Mathematics Teachers’ Geometric Proof Abilities at Nakhon Pathom Rajabhat University through Inquiry-Based Learning (5E) with GeoGebra”. Ratchaphruek Journal 24 (2):293-309. https://doi.org/10.14456/rpjnrru.2026.17.