Das, B. (2000). Integral calculus including differential equations. Dhur Sons.
Chicago-viite (17. p.)Das, B.C. Integral Calculus Including Differential Equations. Calcutta: Dhur Sons, 2000.
MLA-viite (9. p.)Das, B.C. Integral Calculus Including Differential Equations. Dhur Sons, 2000.
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