Nugroho, K.U.Z., Sukestiyarno, Y.L. and Nurcahyo, A. 2021. The Weaknesses of Euclidean Geometry: A Step of Needs Analysis of Non-Euclidean Geometry Learning through an Ethnomathematics Approach. Edumatika : Jurnal Riset Pendidikan Matematika. 4, 2 (Nov. 2021), 126–149. DOI:https://doi.org/10.32939/ejrpm.v4i2.1015.