TY - GEN AU - Jamison,Dean T. TI - Cost factors in planning educational technology systems T2 - Fundamentals of Educational Planning 24 SN - 9280310763 U1 - 379.2 CY - Paris PB - Unesco KW - Education KW - Education- finance KW - Education- government policy KW - Teaching KW - Unesco N1 - With appendix, references ER -