1. Balakrishna, K. (1998). U–Th series radionuclides and heavy metals in Kaiga region and Kali river, Karnataka State and the adjoining Arabian Sea (238pp). Ph. D. thesis, Mangalore University, Mangalagangotri.
2. Banerjee, D.K. (1977). Rivers of India (256pp). Calcutta: World Press Pvt. Ltd.
3. Berner, E.K., & Berner, R.A. (1987). The global water cycle: Geochemistry and environment (p. 397). Englewood Cliffs, NJ: Prentice-Hall.
4. Uranium isotopes in rivers, estuaries and adjacent coastal sediments of western India;Borole;Geochimica et Cosmochimica Acta,1982
5. Cherdyntsev, V. V. (with P.I. Chalov et al.) (1955). Uranium series disequilibrium dating. In Trans. 3rd Sess. Commission for Determining the Absolute Age of Geol. Formations, pp. 175–182 Izd. Akad. Nauk SSSR. [2.5.1, 3.3, 3.4.1].