TY - BOOK AU - Darbyshire Paul TI - Instructional technologies: cognitive aspects of online programs SN - 1591402379 (pbk) U1 - D65,8(B):710bT, P5 TD PY - 2005/// CY - Hershey PB - IRM Press KW - Distance education KW - Educational technology KW - Instructional systems-design KW - Internet in education KW - Computer Science N1 - Includes bibliographical references; Index 270-274p ER -