Publikacja dostępna w wersji elektronicznej w open access na licencji CC BY 4.0.
Received: 13 November 2020, accepted: 15 December 2020, published: 17 December 2020. Publikacja wydana w: Special Issue "Game-Based Learning, Gamification in Education and Serious Games" / editors Carlos Vaz de Carvalho, Antonio Coelho.
Supported by a grant from the Cooperation Fund Foundation within the “Paths of cooperation—supportfor entities implementing international cooperation” project co-financed from the European Social Fund under the Operational Programme Knowledge Education Development. 0,00 bezkosztowa
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