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(2012). Animal Physiology: From Genes to Organisms (jezik: engleski). Cengage Learning. ISBN 978-0840068651. Pristupljeno 13. 12. 2017. Priuska, E.M...

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Cognitive Psychology (PDF) (jezik: engleski) (6. izd.). Belmont, CA: Wadsworth/Cengage Learning. ISBN 9781133313915. Pristupljeno 1. 5. 2026. Wagemans, Johan;...

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Individual Differences (jezik: engleski) (5. izd.). Belmont, CA: Wadsworth/Cengage Learning. ISBN 978-1-111-34605-8. Pristupljeno 15. 5. 2026. Piaget, Jean...