1. Babington, Ch. (2007). Bush Signs Lobby-Ethics Bill. The Oklahoman. Retrieved from https://eu.oklahoman.com/story/news/2007/09/14/bush-signs-lobby-ethics-bill/61715477007/
2. Cabinet of Ministers of Ukraine. (2015). Resolution No. 878 of October 28, 2015 “On Approval of the Regulation on the Ministry of Internal Affairs of Ukraine”. Retrieved from https://zakon.rada.gov.ua/laws/show/878-2015-%D0%BF#Text
3. Centre for Integrity in the Defence Sector. (2019). The necessity and functions of ther Code of Ethics. Retrieved from https://www.nato.int/nato_static_fl2014/assets/pdf/2020/8/pdf/BB-GGG-8-ukr.pdf
4. Criminal Code of Ukraine. (2001). Retrieved from https://zakon.rada.gov.ua/laws/show/2341-14#Text
5. Gobierno de España. (2007). Ley 7/2007, de 12 de abril, del Estatuto Básico del Empleado Público. Retrieved from https://www.boe.es/buscar/pdf/2007/BOE-A-2007-7788-consolidado.pdf