Amauche, Ibiam Prince, et al. “Comparative Study of Phytochemical Properties of Some Bio-Material (African Yam Bean, Pigeon Pea, Pawpaw Leaf Powder, Moringa Seed and Pawpaw Seed)”. American Journal of Environmental Economics, vol. 1, no. 1, July 2022, pp. 13-18, https://doi.org/10.54536/ajee.v1i1.347.