Widuri, Nabila Ekaputri, Rustanto Rahardi, and Toto Nusantara. “Pengembangan LKPD Berbasis Etnomatematika Sidoarjo Kelas XI Materi Dilatasi”. Jurnal Ilmiah Soulmath : Jurnal Edukasi Pendidikan Matematika 14, no. 1 (January 27, 2026): 17–28. Accessed June 20, 2026. https://ejournal.unitomo.ac.id/index.php/mipa/article/view/11236.