by Ramakrishnan, D., Ghosh, S. K., Raja, V. K. M., Chandran, R. Vinu, Jeyram, A.
Published in Current science (Bangalore) (10.03.2005)

by Paul, K Raj, Irudayaraj, V, Johnson, M, Patric, D Raja
Published in Asian Pacific journal of tropical biomedicine (2011)