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| 1. |
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Crisis Management
Katarina Holla, Jozef Ristvej, Michal Titko
Inbunden. IntechOpen, Storbritannien, 2018.
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| 2. |
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Learning Technology for Education Challenges
Lorna Uden, Dario Liberona, Jozef Ristvej
Häftad. Springer International Publishing AG, Schweiz, 2018.
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| 3. |
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Learning Technology for Education Challenges
Lorna Uden, Dario Liberona, Jozef Ristvej
E-bok. Springer International Publishing, Schweiz, 2018.
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