Bản mẫu:R:dra-ote:Radhakrishna

Budaraju Radhakrishna (1971) “ఊరు”, trong Early Telugu Inscriptions (up to 1100 A.D.) with Texts, Glossary & Brief Linguistic History., Kalabhavan, Saifabad, Hyderabad: Andhra Pradesh Sahitya Akademi, tr. 240.