[1]
Radulović B. and Stojanović M. 2019. Comparison of Teaching Instruction Efficiency in Physics through the Invested Self-Perceived Mental Effort. Voprosy obrazovaniya / Educational Studies Moscow. 3 (Sep. 2019), 152-175. DOI:https://doi.org/10.17323/1814-9545-2019-3-152-175.