Education, D. o. C. (2019). Introduction to Adult Education. Obafemi Awolowo University.
Čikaški stil citiranja (17. izdanje)Education, Department of Continuing. Introduction to Adult Education. Obafemi Awolowo University, 2019.
MLA način citiranja (9. izdanje)Education, Department of Continuing. Introduction to Adult Education. Obafemi Awolowo University, 2019.
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