Y. AMEYAW, H. AKOTOYE, A. PAPPOE, Y. OPOKU BOAHEN, and F. EYIAH-BEDIAKO, “Assessment of Variation in Cryptolepis sanguinolenta (Lindl.) Schter., An Antimalaria Plant of The Family Periploceae Using Principal Component Analysis”, ajc, vol. 19, no. 3, pp. 1809–1818, Mar. 2010.