Gródek-Szostak, Zofia, Danuta Kajrunajtys, Luis Ocha Siguencia, and Agnieszka Chęcińska Zaucha. “EPSS – METHOD AND TOOLS FOR IMPROVING THE COMPETENCE IN THE XXI CENTURY”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 5 (May 25, 2018): 272–282. Accessed March 11, 2026. https://archive-journals.rtu.lv/sie/article/view/1895.