Oyoo, J., E. M. P. K. Elijah Ateka, J. K. Miriam Judith Otipa, and L. Wasilwa. “Effect of Bio-Stimulators on Growth and Yield of Cowpea Leaves (Vigna Unguiculata Walp) Produced in Juja and Katumani in Kenya”. Journal of Phytology, vol. 9, no. 1, Dec. 2017, pp. 15-23, doi:10.25081/jp.2017.v9.3379.