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Basu, Baidyanath Introduction to astrophysics / Baidyanath Basu, Tanuka Chattopadhyay & Sudhindra Nath Biswas . – 2nd ed. . – Delhi : PHI, 2019 582p. ISBN9788120340718 • Physics • Astronomy • Astrophysics Chattopadhyay, Tanuka Biswas, Sudhindra Nath