Asok Kumar Sarkar. (2005). NGOs: The new lexicon of health care. Concept publishing company.
Chicago Style aipamenaAsok Kumar Sarkar. NGOs: The New Lexicon of Health Care. New Delhi: Concept publishing company, 2005.
MLA aipamenaAsok Kumar Sarkar. NGOs: The New Lexicon of Health Care. Concept publishing company, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.