N. C. R, “EFFET OF COMBINATION OF HPMC AND CARBOPOL 934P ON THE PROPERTIES OF THE GASTRIC FLOATING TABETS OF TIMOLOL MALEATE”, J. Drug Delivery Ther., vol. 3, no. 4, pp. 20–25, Jul. 2013, doi: 10.22270/jddt.v3i4.567.