N C E R T. (1990). Vaidyuthi pravruthiyil. State Institute of Languages.
Chicago Edition CitationN C E R T. Vaidyuthi Pravruthiyil. Thiruvananthapuram: State Institute of Languages, 1990.
MLA Edition CitationN C E R T. Vaidyuthi Pravruthiyil. State Institute of Languages, 1990.
Warning: These citations may not always be 100% accurate.