Alemad, A., Maher Al-Absi, Safwan Alagbarri, and Mofeed Al- Nowihi. “Formulation by Design Approach for Effervescent Granules of Vitamin C Using Statistical Optimization Methodologies”. Journal of Applied Pharmaceutical Research, vol. 8, no. 4, Nov. 2020, pp. 62-69, doi:10.18231/j.joapr.2020.v.8.i.4.62.69.