Exhibit No. EX-99.d.1.ff DFA INVESTMENT DIMENSIONS GROUP INC. T.A. WORLD EX U.S. CORE EQUITY PORTFOLIO INVESTMENT ADVISORY AGREEMENT AGREEMENT made this ____ day of ____________, 2008, by and between DFA INVESTMENT DIMENSIONS GROUP INC., a Maryland...Investment Advisory Agreement • December 13th, 2007 • Dfa Investment Dimensions Group Inc
