R.K. Samanta 
Manual on instructional aids for teaching excellence 
 - New Delhi  Mittal Publications  1991 
 - 160p 
R.K. Samanta: Manual on instructional aids for teaching excellence.  New Delhi.  Mittal Publications, 1991. 81-7099-335-0--(371.3078SAM)   
ENGLISH 
81-7099-335-0 
371.3078  / SAM