S. Tiwari, R. P. Pandey, and A. Singh, “EFFECT OF CYCLOART-24-EN-3-OL FROM EUPHORBIA ROYLEANA LATEX ON NEURO-ENZYME AChE AND OXIDATIVE METABOLISM OF FRESHWATER FISH, CHANNA PUNCTATUS”, Afr J Tradit Complement Altern Med, vol. 5, no. 4, pp. 332–339, May 2008.