Sierra, K., & Bates, B. (2017). OCA java SE 8 programmer I exam guide (Exams 1Z0-808) (McGraw-Hill Education (India) edition 2018.). McGraw-Hill Education.
Čikaški stil citiranja (17. izdanje)Sierra, Kathy, i Bert Bates. OCA Java SE 8 Programmer I Exam Guide (Exams 1Z0-808). McGraw-Hill Education (India) edition 2018. New York ; India: McGraw-Hill Education, 2017.
MLA način citiranja (8. izdanje)Sierra, Kathy, i Bert Bates. OCA Java SE 8 Programmer I Exam Guide (Exams 1Z0-808). McGraw-Hill Education (India) edition 2018. McGraw-Hill Education, 2017.
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