Attri, A.K.
Educationsl Technology/ Print. by Ajay Kumar Attri - - New Delhi : APH Publishing Corperation c2017 - xix, 244p. : ill.; 21cm.
Includes Index
9788176480710
B-42332
ta
Educational Technology
Audio-Visual Materials
Audio-Visual Education
A87 2017
Educationsl Technology/ Print. by Ajay Kumar Attri - - New Delhi : APH Publishing Corperation c2017 - xix, 244p. : ill.; 21cm.
Includes Index
9788176480710
B-42332
ta
Educational Technology
Audio-Visual Materials
Audio-Visual Education
A87 2017