1.
Machnun Saputra A, Sugiarti R. Utilization of Android-Based ToSM (Test of Second Mathematics) Instrument for Mapping Intuitive Basic Calculation Competencies (IBCC) in Students. IERJ [Internet]. 2021 Jul. 31 [cited 2025 Oct. 27];2(2):54-67. Available from: https://www.journal.ittishal.net/index.php/ierj/article/view/21