B. D. Bhatt, Ravi Prakash

Kanishka Publishers Distributors 1994 Modern encyclopaedia of educational technology

set , 1 , 2 , 3 , 4

Available at 3 libraries

B. D. Bhatt, S. R. Sharma

Kanishka Pub. House 1993 1st ed Modern education series

Available at 5 libraries

B.D. Bhatt, S.R. Sharma

Kanishka Pub. House 1992 Modern education series

Available at 4 libraries

edited by B. D. Bhatt and J. C. Aggarwal

Arya Book Depot 1969

Available at 2 libraries