1. Financial Systems in Europe, the USA, and ASIA
2. Allen, F., Gale, D. (2001). Comparative financial systems: a survey. - https://core.ac.uk/download/pdf/6649943.pdf
3. Arestis, Philip, Dow, Sheila C., Peniston, William A. On Money, Method and Keynes Selected Essays. - http://www.palgrave.com/gp/book/9780333536346?wt_mc=ThirdParty.SpringerLink.3.EPR653.About_eBook#otherversion=9781349219377
4. Bijlsma, M. J., & Zwart, G. T. J. (2013). The changing landscape of financial markets in Europe, the United States and Japan. Netherlands bureau for economic policy analysis, cpb discussion paper, 238, 66 p.
5. Charles Wallace Collins. (1916). Constitutional Aspects of a National Budget System. The Yale Law Journal, 25(5), 376-385. - http://www.jstor.org/stable/787025?seq=1#page_scan_tab_contents