Rahaman, M., Hasan, A.M., Ali, M. and Ali, M. 2007. Studies on the Isolation of Parahydroxy Benzoic Acid from the Leaves of <i>Cassia Alata</i>. Bangladesh Journal of Scientific and Industrial Research. 41, 1 (Aug. 2007), 89–92. DOI:https://doi.org/10.3329/bjsir.v41i1.275.