setiawan, I. M. D. “The Effect of Geogebra-Assisted E-Learning Based Learning on Computer Mathematics Learning Outcomes With Spatial Ability Covariables: Pengaruh Pembelajaran Berbasis E-Learning Berbantuan Geogebra Terhadap Hasil Belajar Matematika Komputer Dengan Kovariabel Kemampuan Spasial”. PENDIPA Journal of Science Education, vol. 9, no. 1, Apr. 2025, pp. 124-31, doi:10.33369/pendipa.9.1.124-131.