MAKINDE, A. M., E. A. FAJUYIGBE, and M. O. ISA. “Secondary Metabolites and Bioactivity of Hyophila Involuta (Hook) Jaeg”. Notulae Scientia Biologicae, vol. 7, no. 4, Dec. 2015, pp. 456-9, doi:10.15835/nsb749663.