Thakur, S., D. Jain, and S. Prajapati. “DEVELOPMENT AND CHARACTERIZATION OF SUSTAINED RELEASE GASTRO-RETENTIVE FLOATING TABLETS OF AMBROXOL HYDROCHLORIDE”. INTERNATIONAL JOURNAL OF PHARMACEUTICAL EDUCATION AND RESEARCH (IJPER), Vol. 4, no. 1, June 2022, pp. 43-49, doi:10.37021/ijper.v4i1.6.