Development of a STEM-PJBL-Based Digital Book With Geogebra™ Using the Assure Model to Enhance Students’ Mathematical Literacy in Geometry. Journal of Emerging Technology in Teaching and Learning (JETTLe), [S. l.], v. 1, n. 1, p. 17–29, 2025. DOI: 10.26877/jettle.v1i1.1828. Disponível em: https://journal2.upgris.ac.id/index.php/jettle/article/view/1828. Acesso em: 23 apr. 2026.