Nambudripad, Usha Samuhika bhasha vijnanam / സാമൂഹിക ഭാഷാവിഞ്ജാനം by Usha Nambudripad - Trivandrum : State Institute Of Languages , 1994 . - 156 p. Paper Back Subjects--Topical Terms: Malayalam literatureStudySocial linguistics Dewey Class. No.: M07 / USH-S