Ismail, I. A., et al. “BIOLOGICAL RESPONSE OF COWPEA BRUCHID, CALLOSOBRUCHUS MACULATUS (FAB.) (COLEOPTERA: BRUCHIDAE) TO COUMARIN EXTRACTS”. European Scientific Journal, ESJ, vol. 10, no. 10, Sept. 2014, https://test.eujournal.org/index.php/esj/article/view/4220.