Tamiḻ Nāṭṭup paḻaṅkuṭi makkaḷ : vāḻvum varalāṟum - Caktivēl, Cu., 1939- (Maṇivācakar Nūlakam, 1980)
Ethnological study of the socially and economically underprivileged people of Tamil Nadu.