Nigusse, Gebru Arefaine, and Kassa Michael. “Geogebra Supported Multiple Representations to Enhance Representational Skills in Calculus ”. Asian Journal of Assessment in Teaching and Learning, vol. 12, no. 2, Nov. 2022, pp. 110-21, https://doi.org/10.37134/ajatel.vol12.2.10.2022.