Tanaka, Yusuke, et al. “Prediction of Oral Absorption of Low-Solubility Drugs by Using Rat Simulated Gastrointestinal Fluids: The Importance of Regional Differences in Membrane Permeability and Solubility”. Journal of Pharmacy & Pharmaceutical Sciences, vol. 17, no. 1, Mar. 2014, pp. 106-20, doi:10.18433/J37606.