Ravisankar S Nair. (2007). Paddypadhathi siddantham. Kerala Bhasha Institute.
Chicago Edition CitationRavisankar S Nair. Paddypadhathi Siddantham. Thiruvananthapuram: Kerala Bhasha Institute, 2007.
Cita MLARavisankar S Nair. Paddypadhathi Siddantham. Kerala Bhasha Institute, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.