Ochoa Siguencia, Luis, Gilberto Marzano, Renata Ochoa-Daderska, Zofia Gródek-Szostak, and Anna Szeląg-Sikora. “COVID-19 AND EDUCATION MANAGEMENT: THE CASE OF SILESIAN REGION - POLAND”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June 17, 2021): 162–168. Accessed November 23, 2024. https://journals.ru.lv/index.php/ETR/article/view/6547.