M. S. Islam, K. R. Azam, J. A. Chowdury, and M. S. Reza, “Comparison of Gastro Retention Time and <i>in vitro</i> Release Profile studies of Ciprofloxacin HCl from Co-matrix Tablets of Hydrophilic Polymers”, Dhaka Univ. J. Pharm. Sci, vol. 8, no. 1, pp. 67–73, Jun. 2010.