U. L., Undie, Agba O. A, Adiaha M. S, and Osang P. O. 2017. “Responses of Utasi (Gongronema Latifolium) to NPK 15:15:15 Fertilizer Rates in a Utisol South-South Nigeria”. International Journal of Scientific World 5 (2): 126-30. https://doi.org/10.14419/ijsw.v5i2.8112.