M. S. Alam, J. A. Chowdhury, S. M. A. Sadat, and M. S. Reza, “Development and Evaluation of Salbutamol Sulphate Loaded Ethyl Cellulose Microcapsules using Emulsion Solvent Evaporation Technique”, Bangla Pharma J, vol. 18, no. 2, pp. 132–136, Jul. 2015.