1. Biopharmaceutics in the Theory and Practice of IndustrialPharmacy;Gibaldi,1970
2. Ibid.,p. 235
3. Factors Affecting the Absorption of Riboflavin in Man;Levy,1966
4. Gibaldi, M., op. cit.,p. 237
5. On the Mechanism of Absorption of Drugs From the Gastrointestinal Tract;Schanker,1960