Pertiwi, Stri, Mailizar Mailizar, and Elizar Elizar. “VALIDITY OF GUIDED INQUIRY-BASED LEARNING INSTRUMENT WITH GEOGEBRA APPLETS FOR TEACHING CIRCLES”. Kalamatika: Jurnal Pendidikan Matematika 8, no. 1 (April 30, 2023): 63-76. Accessed July 1, 2025. https://kalamatika.matematika-uhamka.com/index.php/kmk/article/view/561.