Ugoeze, Kenneth C., and Amarauche Chukwu. “EVALUATION OF A MODIFIED BIOMATERIAL OF TYMPANOTONUS FUSCATA SHELL POWDER I: FORMULATION OF THEOPHYLLINE HYDRATE AND HYDROCHLOROTHIAZIDE TABLETS”. Journal of Drug Delivery and Therapeutics, vol. 8, no. 2, Apr. 2018, pp. 176-80, https://doi.org/10.22270/jddt.v8i2.1698.