Nugrahani, Ilma, and Kathelea Aulia Kartini. 2015. “STUDY OF PHYSICAL INTERACTION BETWEEN IBUPROFEN AND CAFFEINE AND ITS INFLUENCE ON SOLUBILITY AND HYGROSCOPICITY OF IBUPROFEN”. International Journal of Pharmacy and Pharmaceutical Sciences 7 (11):223-27. https://journals.innovareacademics.in/index.php/ijpps/article/view/4644.