5.4 Internal Rate of Return Demery and Duck, 1978, The Behaviour of Nominal Interest Rates in the United Kingdom, 1961-1973, Economica, Vol. 45, Issue 177, pp.23-37.
Ghauri, P.N.K. Gronhaug, and I. Kristianslund, 1995, Research methods in Business Studies: a practice guide, Prentice-Hall, New York.
Husted and Melvin, 2007, International Economics, 7th ed., Pearson Addison Wesley.
Oldcorn & Parker, 1996, Strategic Investment Decisions, first ed., Prentice Hall FT.