Daugulis, Pēteris, Elfrīda Krastiņa, Anita Sondore, and Vija Vagale. 2020. “VARIETY OF ARRANGEMENTS OF NUMERICAL DATA FOR A DEEPER UNDERSTANDING OF MATHEMATICS”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 1 (May): 107-18. https://doi.org/10.17770/sie2020vol1.5081.