Balagopal,B. (1991). Anweshanathinte aarambham. Prabhath, Thiruvananthapuram.
Chicago Style aipamenaBalagopal,B. Anweshanathinte Aarambham. Prabhath, Thiruvananthapuram: Prabhath, Thiruvananthapuram, 1991.
MLA aipamenaBalagopal,B. Anweshanathinte Aarambham. Prabhath, Thiruvananthapuram, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.