Purushothaman,P O. (1988). Tharathamyasahithyam: Thathvavum prasakthiyum. State Institute of languages.
Dyfyniad Arddull ChicagoPurushothaman,P O. Tharathamyasahithyam: Thathvavum Prasakthiyum. Trivendrum: State Institute of languages, 1988.
Dyfyniad MLAPurushothaman,P O. Tharathamyasahithyam: Thathvavum Prasakthiyum. State Institute of languages, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.