ULBRICH, Holley H. Public finance in theory and practice. 2nd ed. Abingdon : Routledge, 2011. online [xviii, 365 p.]. Dostupné na : <https://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=369889&lang=sk&site=ehost-live&scope=site> ISBN 978-1-136-72619-4.