D. Allison and A. Didenko and G. Miller, Investigating Transformations in the Cartesian Plane Using Spreadsheets. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. January 2013, vol. 73(1). 84 - 87 [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/2053.