Islam, M. R., & Khan, M. I. (2007). Act prep plus 2019: 5 practice tests + proven strategies + online. Gulf Publishing Comany.
Čikaški stil citiranja (17. izdanje)Islam, M R., i M I67137 Khan. Act Prep Plus 2019: 5 Practice Tests + Proven Strategies + Online. Texas: Gulf Publishing Comany, 2007.
MLA način citiranja (9. izdanje)Islam, M R., i M I67137 Khan. Act Prep Plus 2019: 5 Practice Tests + Proven Strategies + Online. Gulf Publishing Comany, 2007.
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