Das, B. (1997). Differential calculus. U.N. Dhur.
Tohutoru Kātū Chicago (17th ed.)Das, B.C. Differential Calculus. Calcutta: U.N. Dhur, 1997.
Tohutoro MLA (9th ed.)Das, B.C. Differential Calculus. U.N. Dhur, 1997.
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