Miranty Novita Sari, Sefna Rismen, and Lita Lovia. 2022. “Validity of Interactive Learning Media Using Sparkol Videoscribe on Limits of Algebra Functions for Class XI IPS 1 SMAN 12 Padang”. Rangkiang Mathematics Journal 1 (2):66-71. https://doi.org/10.24036/rmj.v1i2.16.