E-content of Physics (Dr. Sangam Kumar)


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You can  make query from Dr. Sangam Kumar.

Dr. Sangam Kumar
P.G. Department of Physics, L.S. College , 
B.R.A.Bihar University, Muzaffarpur - 842001
Mob. No. +91-9905222295
E-mail : kumarsangam.phy@gmail.com