Instructional media and the new technologies of instruction /
Heinich, Robert.
Instructional media and the new technologies of instruction / Robert Heinich, Michael Molenda, James D. Russell. - 2nd ed. - New York : Macmillan, 1985. - xiv, 414 p.
0023528907 :
Educational technology.
Instructional media and the new technologies of instruction / Robert Heinich, Michael Molenda, James D. Russell. - 2nd ed. - New York : Macmillan, 1985. - xiv, 414 p.
0023528907 :
Educational technology.