Ravi, I. (1992). Bhashabhyasanathinu oru bhoomika. State Institute of Languages.
Chicago Edition CitationRavi, Irinchayam. Bhashabhyasanathinu Oru Bhoomika. Thiruvananthapuram: State Institute of Languages, 1992.
Cita MLARavi, Irinchayam. Bhashabhyasanathinu Oru Bhoomika. State Institute of Languages, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.