Palacio, R.J. (2012). Čudo. Ljubljana: A. Knopf.
Wonder by R.J Palacio. Pridobljeno 19.2.2019, s https://wonderthebook.com/books/wonder
Čudo – Knjigarna Bukla. .Pridobljeno 19.2.2019, s https://www.bukla.si/knjigarna/otrosko-in-mladinsko/cudo-trda-vezava-1.html
Palacio author biography. Prodobljeno 19.2.2019, s https://www.bookbrowse.com/biographies/index.cfm/author_number/2169/rj-palacio
About R.J. Palacio/ Wonderbook. . Pridobljeno 19.2.2019, s https://wonderthebook.com/about
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