Mohammed, M., I. M. Bugaje, and M. A. Garba. “Three Iridoid Glycosides from the Root Extract of Stachytarpheta Angustifolia Mill Vahl Verbenaceae”. IJRDO - Journal of Mechanical And Civil Engineering, Vol. 1, no. 3, Mar. 2015, doi:10.53555/mce.v1i3.550.