Umekoli, G. C., J. O. Onyechi, and O. K. Udeala. “Use of Dika Fat in the Formulation of Sustained Release Theophylline Tablets and Capsules”. Journal of Biological Research and Biotechnology 7, no. 1 (April 5, 2025): 456 – 460. Accessed May 4, 2025. https://www.bio-research.com.ng/index.php/home/article/view/358.