Potu Appa Rao, and Prabhakar Reddy Veera Reddy. “Preparation and Evaluation of Oral Controlled Release Mucoadhesive Microspheres of Ketorolac Tromethamine”. International Journal of Drug Delivery, vol. 6, no. 2, June 2014, pp. 121-32, https://ijdd.arjournals.org/index.php/ijdd/article/view/237.