WIDODO, Suryo. Menghasilkan Lulusan Kreatif Melalui Pembelajaran Berbasis Masalah Kontekstual: creative thinking: contextual problem-based learning. Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika, Indonesia, INA, v. 3, n. 2, p. 59–72, 2017. DOI: 10.29407/jmen.v3i2.856. Disponível em: https://ojs.unpkediri.ac.id/index.php/matematika/article/view/856. Acesso em: 7 apr. 2025.