Ashafa, A. O. T., M. Yakubu, A.-A. Ogbe, and A. Abass. “Effect of Ethanolic Seed Extract of Croton Penduliflorous Hutch. On Loperamide-Induced Constipated Male Rats”. Bangladesh Journal of Pharmacology, Vol. 7, no. 1, May 2012, pp. 42-46, doi:10.3329/bjp.v7i1.10120.