State Institute of Language. (1971). Ganitha-Bhoutika pattikakal. State Instititute of Languages.
Chicago Edition CitationState Institute of Language. Ganitha-Bhoutika Pattikakal. Thiruvananthapuram: State Instititute of Languages, 1971.
Cita MLAState Institute of Language. Ganitha-Bhoutika Pattikakal. State Instititute of Languages, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.