Akanda, M. K., S. A. Islam, J. A. Chowdhury, and M. S. Reza. “Effect of Viscosity Imparting Agents on In Vitro Drug Release from PEG Based Suppositories”. Dhaka University Journal of Pharmaceutical Sciences, vol. 4, no. 1, June 2007, doi:10.3329/dujps.v4i1.190.