Jha, S. M. (2011). Services marketing (6.). Himalaya publishing house.
Chicago Style aipamenaJha, S M. Services Marketing. 6. Mumbai: Himalaya publishing house, 2011.
MLA aipamenaJha, S M. Services Marketing. 6. Himalaya publishing house, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.