Carl J. Sheperis, M. H. D. Counseling Research: Quantitative, Qualitative, and Mixed Methods (1.). Pearson India.
Čikaški stil citiranja (17. izdanje)Carl J. Sheperis, M. Harry Daniels. Counseling Research: Quantitative, Qualitative, and Mixed Methods. 1. Pearson India.
MLA način citiranja (8. izdanje)Carl J. Sheperis, M. Harry Daniels. Counseling Research: Quantitative, Qualitative, and Mixed Methods. 1. Pearson India.
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