Safitri, W. S., Sahmin, S. ., Isnawan , M. G. . and Indrawati, I. (2024) “The Influence of regional languages on presenting and solving local mathematics problems: a systematic literature review”, Polyhedron International Journal in Mathematics Education, 2(1), pp. 30–37. doi: 10.59965/pijme.v2i1.88.