[1]
M. M. Ali, M. Eisa, M. I. Taha, B. A. Zakaria, and A. A. Elbashir, “Determination of Caffeine in Some Sudanese Beverages by High Performance Liquid Chromatography”, Pak. J. Nutr., vol. 11, no. 4, pp. 336–342, Mar. 2012, doi: 10.3923/pjn.2012.336.342.