Yakubu, O. E.; Abu, M. S.; Danjuma, J.; Umaru, I. J.; Oladele, G. O. Stembark Methanol Extract of P. Americana: Total Antioxidant Capacity, Total Flavonoids Content, Total Phenolics Content and Its Flavonoids, Vitamins and Amino Acids Profile. AJSTM 2024, 1, 340-357.