信息不完整 “Endangerment of Betta Kurumba (Tamil nadu), Betta Kuruba (Karnataka) and Uralikuruman (Kerala)” (134-146) . V. Gnanasundaram, R. Perialwar and K. Rangan (2012)
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A language maintenance survey carried out with older (aged 46-60), middle aged (30-45) and younger (8-29) Betta Kurumbas shows no signs of language loss for the two older groups. Speakers among the younger group however were unable to produce 5-7% of the basic Betta Kurumba vocabulary items which were tested for.