Miraldi, E., M. Biagi, and D. Giachetti. “Review A Comprehensive Systematic Pharmacological Review on Harpagophytum Procumbens DC. (Devil’s Claw)”. Biological Sciences - PJSIR, vol. 51, no. 3, June 2008, pp. 165-76, https://v2.pjsir.org/index.php/biological-sciences/article/view/663.