rahmawati, anina, Luthfiyah, & Hidayatin, N. (2026). Ethnomathematics in Watermelon Farming: An Analysis of Traditional Calculation Techniques and Planting Patterns in Paseban Village, Jember. Journal on Mathematics Education Research (J-MER), 7(1), 119-134. https://doi.org/10.17509/j-mer.v7i1.907