Hasan, M.R., Hassan, P. and Miah, M.A.J. 2014. Evaluation of some biochemical changes in the serum of phensedyl addicts of Gaibandha District, Bangladesh. Journal of Bio-Science. 20, (Jan. 2014), 57–65. DOI:https://doi.org/10.3329/jbs.v20i0.17656.