MACHNUN SAPUTRA, Ade; SUGIARTI, Rini. Utilization of Android-Based ToSM (Test of Second Mathematics) Instrument for Mapping Intuitive Basic Calculation Competencies (IBCC) in Students. Ittishal Educational Research Journal, [S. l.], v. 2, n. 2, p. 54–67, 2021. DOI: 10.51425/ierj.v2i2.21. Disponível em: https://www.journal.ittishal.net/index.php/ierj/article/view/21. Acesso em: 27 oct. 2025.