Tantu, Year Rezeki Patricia, Tanti Listiani, and Wiyun Philipus Tangkin. “Development of Contextual-Based Mathematics and IPAS Textbooks for Elementary School Phase A in Support of Independent Learning”. Plusminus: Jurnal Pendidikan Matematika 5, no. 2 (July 30, 2025): 365–382. Accessed August 11, 2025. https://journal.institutpendidikan.ac.id/index.php/plusminus/article/view/2841.