Priya Shukla, Ch.S.Vijayavani, and V.Uma Maheshwar Rao. “Formulation and Evaluation of Double Walled Microspheres of Esomeprazole”. International Journal of Pharmacy and Analytical Research, vol. 4, no. 3, Sept. 2015, pp. 352-64, doi:10.61096/ijpar.v4.iss3.2015.352-364.