Problems with and without … Problems! (Translated from French)

A Beginner's Guide to Constructing the Universe: The Mathematical Archetypes of Nature, Art, and Science

Nidus Idearum. Scilogs, III: viva la neutrosophia!

How Numbers Work: Discover the strange and beautiful world of mathematics

Only Problems, not Solutions!

An Introductory Course in Elementary Number Theory

Proposed Problems of Mathematics, Vol. II, Second edition - entirely translated to English

Math Storm Olympiad Problems

Proceedings of the First International Conference on Neutrosophy, Neutrosophic Logic, Neutrosophic Set, Neutrosophic Porbability and Statistics: Www. Gallup. Unm. Edu/~Smarandache/NeutrosophicProceedings. Pdf

Neutrosophic Theory and Its Applications, Vol. I: Collected Papers

Notebooks of Srinivasa Ramanujan: Volume II, Volume 2

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Number Theory: Structures, Examples, and Problems

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A History of Pi

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Complex Numbers from A to ... Z: Edition 2

Proposed Problems of Mathematics, Vol. II