@article {1545, title = {CONTENTS}, journal = {Problems of Education in the 21st Century}, volume = {80}, year = {2022}, month = {April/2022}, pages = {Continuous}, type = {Other}, chapter = {237}, abstract = {Contents, Vol. 80, No. 2, 2022, PEC}, keywords = {contents}, issn = {1822-7864}, url = {https://oaji.net/articles/2022/457-1651337787.pdf}, author = {Editorial Board} }