Kshatriya et al., Journal of the University of Bombay, Science: Physical Sciences, Mathematics, Biological Sciences and Medicine, 1950, vol. 19/3 A, p. 69,72
Kshatriya; Nargund, Journal of the University of Bombay, Science: Physical Sciences, Mathematics, Biological Sciences and Medicine, 1948, vol. 17/3A, p. 13,20,22