TY  - BOOK
AU  - Tessmer, Martin
AU  - Harris, Duncan
TI  - Beyond instructional effectiveness : key environmental decisions for instructional designers as change agents
KW  - AMBIENTE EDUCATIVO
KW  - EFICACIA DE LA ENSE\197ANZA
KW  - ENSEÑANZA PROGRAMADA
N1  - Enero 1991
ER  -