Cossu, S. M., & Cossu, S. M. (2019). Game Development with GameMaker Studio 2: Make Your Own Games with GameMaker Language (1st ed. 2019.). Apress : Imprint: Apress. https://doi.org/10.1007/978-1-4842-5010-5
Παραπομπή σε μορφή Chicago (17η εκδ.)Cossu, Sebastiano M., και Sebastiano M. Cossu. Game Development with GameMaker Studio 2: Make Your Own Games with GameMaker Language. 1st ed. 2019. Berkeley, CA: Apress : Imprint: Apress, 2019. https://doi.org/10.1007/978-1-4842-5010-5.
Παραπομπή σε μορφή MLA (8th εκδ.)Cossu, Sebastiano M., και Sebastiano M. Cossu. Game Development with GameMaker Studio 2: Make Your Own Games with GameMaker Language. 1st ed. 2019. Apress : Imprint: Apress, 2019. https://doi.org/10.1007/978-1-4842-5010-5.
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