Educational technology for teaching and learning / 
Timothy J. Newby ...[et al]. 
 - 3rd  ed. 
 - Upper Saddle River, NJ. :  Pearson,  2006. 
 - xx, 328  p. 
<br/><br/><label>ISBN: </label>0130467146 :  BSP 51 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instructional systems--Design.<br/>Educational technology--Planning.<br/>Computer assisted instruction.