@ARTICLE{
author={Djokic Olivera J,Vorkapic Marija M},
year={2024},
title={Spatial skills of preschool children from Serbia and a possible model for the typology of children's spatial skills},
journal={FRONTIERS IN EDUCATION},
volume={9},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Djokic Olivera J,Dabic-Boricic Milana M,Jelic Mila S},
year={2022},
title={Comparing ICT With Physical Manipulative Supported Learning of 3D Geometry in Elementary School},
journal={JOURNAL OF EDUCATIONAL COMPUTING RESEARCH},
volume={59},
number={8},
pages={1623-1654},
document_type={Article},
}