1. International Conference on Harmonization (ICH). Q8(R2): Pharmaceutical Development (August 2009). http://www.ich.org/fileadmin/Public_Web_Site/ICH_Products/Guidelines/Quality/Q8_R1/Step4/Q8_R2_Guideline.pdf
2. International Conference on Harmonization (ICH). Q9: Quality Risk Management (November 2005). http://www.ich.org/fileadmin/Public_Web_Site/ICH_Products/Guidelines/Quality/Q9/Step4/Q9_Guideline.pdf
3. International Conference on Harmonization (ICH) Q11: Development and Manufacture of Drug Substances Draft Guideline (May 2011). http://www.ich.org/fileadmin/Public_Web_Site/ICH_Products/Guidelines/Quality/Q11/Q11_Step_4.pdf