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Subrahmanyam N., Brijlal, . (2019). A text book of optics. New Delhi: S Chand and Company Ltd.
Subrahmanyam N, Brijlal, . 2019. A text book of optics. New Delhi: S Chand and Company Ltd.
Subrahmanyam N, Brijlal, . A text book of optics. New Delhi: S Chand and Company Ltd. 2019.
