APA
(2003). Horamritam I. Trissur: Girijakumaran Astrological Research Foundation.
Chicago
2003. Horamritam I. Trissur: Girijakumaran Astrological Research Foundation.
Harvard
(2003). Horamritam I. Trissur: Girijakumaran Astrological Research Foundation.
MLA
Horamritam I. Trissur: Girijakumaran Astrological Research Foundation. 2003.