MARU, S., A. OKARU, F. KAMAU, K. M. KURIA, B. NG’ANG’A, and L. GATHU. “Formulation and Evaluation of Ibuprofen Gel Using a Natural Polymer”. The East and Central African Journal of Pharmaceutical Sciences, Vol. 18, no. 1, Nov. 2018, pp. 18-22, https://uonjournals.uonbi.ac.ke/ojs/index.php/ecajps/article/view/178.