Heyneman, Stephen P.
Textbooks and achievement: What we know by Stephen P. Heyneman, Joseph P. Farrell and Manuel A. Sepu - Washington, D.C. IBRD 1978 - 34p. - World Bank Staff Working Paper No.298 .
Text Books
P144 In8
Textbooks and achievement: What we know by Stephen P. Heyneman, Joseph P. Farrell and Manuel A. Sepu - Washington, D.C. IBRD 1978 - 34p. - World Bank Staff Working Paper No.298 .
Text Books
P144 In8