1. Alsina, C., & Nelsen R. (2010). An invitation to proofs without words. European Journal of Pure and Applied Mathematics, 3(1), 118-127. Retrieved from http://www.labjor.unicamp.br/comciencia/files/matematica/ar_roger/ar_roger.pdf
2. Bardelle, C. (2010). Visual proofs: an experiment. In V. Durand-Guerrier et al (Eds), Paper presented at the annual meeting of CERME6, Lyon, France. INRP, 251-260. Retrieved from http://ife.ens-lyon.fr/publications/edition-electronique/cerme6/wg2-08-bardelle.pdf
3. Bell, C. J. (2011). Proof without words: A visual application of reasoning. Mathematics Teachers, 104(9), 690–695. Retrieved from http://is234mathforum.webs.com
4. Borwein, P., & Jörgenson, L. (2002). Visible structures in number theory. The American Mathematical Monthly, 108(5), 897-910. Retrieved from https://www.maa.org/sites/default/files/pdf/upload_library/22/Ford/Borwein897-910.pdf
5. Bursal, M. (2017). SPSS ile temel veri analizleri. Ankara: Anı Yayıncılık