Chakraborti & Chhanda. (2007). Logic: Informal, Symbolic and Inductive (2nd ed.). Prentice-Hall of India.
Tohutoru Kātū Chicago (17th ed.)Chakraborti me Chhanda. Logic: Informal, Symbolic and Inductive. 2nd ed. New Delhi: Prentice-Hall of India, 2007.
Tohutoro MLA (9th ed.)Chakraborti me Chhanda. Logic: Informal, Symbolic and Inductive. 2nd ed. Prentice-Hall of India, 2007.
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