“ EFFECT OF SUB-CHRONIC ORAL ADMINISTRATION OF HYDROMETHANOLIC STEM EXTRACT OF COSTUS AFER KER GAWL. (COSTACEAE) ON LIVER AND KIDNEY FUNCTIONS IN WISTAR RATS” (2020) FUDMA JOURNAL OF SCIENCES, 4(2), pp. 317–324. doi:10.33003/fjs-2020-0402-233.