1.
Gavaza T, Lebedeva S, Perkova N. MATHEMATICAL TASKS AS A MEANS OF IMPROVING THE ECOLOGICAL CULTURE OF THE FUTURE TEACHERS. ETR [Internet]. 2017 Jun. 15 [cited 2024 Jul. 3];1:97-102. Available from: https://journals.rta.lv/index.php/ETR/article/view/2525