Jaimini, R., M. K. Gupta, and V. Sharma. “A Review on Formulation and Evaluation of Gastroretentive Floating Tablet of Nifedipin”. Journal of Drug Delivery and Therapeutics, Vol. 9, no. 4, July 2019, pp. 651-6, doi:10.22270/jddt.v9i4.3065.