Trimurtini, Waluya, S., Sukestiyarno, Y. and Kharisudin, I. 2023. Effect of Two-Dimensional Geometry Learning on Geometric Thinking of Undergraduate Students During the COVID-19 Pandemic. Journal of Higher Education Theory and Practice. 23, 3 (Feb. 2023). DOI:https://doi.org/10.33423/jhetp.v23i3.5848.