UMBARA, U.; WAHYUDIN, W.; PRABAWANTO, S. How to predict good days in farming: ethnomathematics study with an ethnomodelling approach. JRAMathEdu (Journal of Research and Advances in Mathematics Education), [S. l.], v. 6, n. 1, p. 71–85, 2021. DOI: 10.23917/jramathedu.v6i1.12065. Disponível em: https://journals2.ums.ac.id/jramathedu/article/view/9345. Acesso em: 17 nov. 2025.