Baba, H., O. Vwioko, and . J. Timikare. “Free Radical Scavenging Activity of Two Edible Vegetables from the Niger Delta Region of Nigeria”. GSC Biological and Pharmaceutical Sciences, vol. 5, no. 2, Nov. 2018, pp. 069-73, doi:10.30574/gscbps.2018.5.2.0092.