V. Lakshmi, A. Saxena, S. K. Mishra, M. Mishra, S. Srivastava, and S. Ghoshal, “Antiamoebic activity of marine sponge Haliclona exigua (Krikpatrick)”, Bangladesh J Pharmacol, vol. 4, no. 1, pp. 55–59, Sep. 2008.