Krup, R. S. (1989). Oudyogika sthitivivarangal: Official statistics. State institute of languages.
Chicago Edition CitationKrup, R S. Oudyogika Sthitivivarangal: Official Statistics. Thiruvananthapuram: State institute of languages, 1989.
MLA Edition CitationKrup, R S. Oudyogika Sthitivivarangal: Official Statistics. State institute of languages, 1989.
Warning: These citations may not always be 100% accurate.