Nugrahani, Ilma, Evalianty Agiana Pertiwi, and Okky Dwichandra Putra. 2015. “THEOPHYLLINE–NA–SACHARRINE SINGLE CRYSTAL ISOLATION FOR ITS STRUCTURE DETERMINATION”. International Journal of Pharmacy and Pharmaceutical Sciences 7 (12):15-24. https://journals.innovareacademics.in/index.php/ijpps/article/view/7749.