1. ISO/IEC 33001: Information Technology - Process assessment – Concepts and terminology. International Organization for Standardization, Geneva (2015)
2. Automotive Spice. http://www.automotivespice.com/fileadmin/software-download/Automotive_SPICE_PAM_30.pdf
3. TIPA for ITIL. https://www.list.lu/fileadmin//files/projects/TIPA_T10_ITIL_PAM_r2_v4.1.pdf
4. ISO/IEC 15504-8: Information Technology – Process assessment – An exemplar process assessment model for IT service management. International Organization for Standardization, Geneva (2012)
5. MDevSPICE. http://www.mdevspice.com/