Ibrahim, M., Idris, M.M., Dauda, U., Ali, U. and Muhammad, A. 2022. Isolation and Characterization of Friedelin and 5-DodecylResorcinol from the Stem Bark Extract of Pterocarpus erinaceus. Journal of Science and Mathematics Letters. 10, 2 (Oct. 2022), 74–80. DOI:https://doi.org/10.37134/jsml.vol10.2.9.2022.