Žilinskienė, Inga, and Valentina Dagienė. “Teaching Methods of Arithmetics Basics in Different Countries”. Lietuvos matematikos rinkinys 48, no. proc. LMS (December 21, 2008): 154–158. Accessed December 1, 2025. https://www.zurnalai.vu.lt/LMR/article/view/18083.