Bagade, Om Mahadeorao, et al. “DESIGN AND STATISTICAL OPTIMIZATION OF ANTACID ANALGESIC EFFERVESCENT TABLETS BY USING 2^3 FACTORIAL DESIGN”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 6, no. 9, Sept. 2014, pp. 453-9, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/1862.