R.K. Puri and V.K. Babbar, . (2018). Solid state physics. New Delhi: S.Chand.
R.K. Puri and V.K. Babbar, . 2018. Solid state physics. New Delhi: S.Chand.
R.K. Puri and V.K. Babbar, . Solid state physics. New Delhi: S.Chand. 2018.