Ali, M. S. (1998). Brain Twister Delightful Mathematics. University Press Limited.
Tohutoru Kātū Chicago (17th ed.)Ali, M. Shamser. Brain Twister Delightful Mathematics. Dhaka: University Press Limited, 1998.
Tohutoro MLA (9th ed.)Ali, M. Shamser. Brain Twister Delightful Mathematics. University Press Limited, 1998.
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