BINTARA, I. A. .; HERMAN, T. .; HASANAH, A. . Didactical Design Realistic Mathematics Education Based on Green Mathematics in Direct & Indirect Proportions Concept at Junior High School. Proceeding International Conference on Science and Engineering, [S. l.], v. 3, p. 555–560, 2020. DOI: 10.14421/icse.v3.562. Disponível em: http://sunankalijaga.org/prosiding/index.php/icse/article/view/562. Acesso em: 13 may. 2026.