Dharmaraj,Joseph. (2000). Brain teasers in mathematics (100 puzzless with solution). Sterling paperbacks.
Chicago-stil citatDharmaraj,Joseph. Brain Teasers in Mathematics (100 Puzzless with Solution). New Delhi: Sterling paperbacks, 2000.
MLA-referensDharmaraj,Joseph. Brain Teasers in Mathematics (100 Puzzless with Solution). Sterling paperbacks, 2000.
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