M. Abrahem, Ruaa, and Zainab J. Awad. 2017. “Phytochemical Study of Steroidal Sapogenin “Tigogenin” Present in the Leaves of Agave Americana Cultivated in Iraq”. Iraqi Journal of Pharmaceutical Sciences 24 (2): 41-47. https://doi.org/10.31351/vol24iss2pp41-47.