Elton, Edwin J. Modern portfolio theory and investment analysis / Edwin J. Elton and Martin J. Gruber. - 5th ed. - New York : John Wiley & Sons, 1995. - xix, 715 p. : ill. ; 26 cm. Buku bacaan asas fakulti. ISBN: 0471007439 Subjects--Topical Terms: Portfolio management.Investment analysis.