Widodo, Sri Adi, Lestariningsih L, Rooselyna Ekawati, Krida Singgih Kuncoro, Trisniawati T, and Shakepear M Chiphambo. 2026. “Feasibility of an Electronic Worksheet for Geometry and Measurement Based on Tri-N and Ethno-Math”. Formatif : Jurnal Ilmiah Pendidikan MIPA 16 (2): 241-54. https://doi.org/10.30998/formatif.v16i2.2186.