A Cp-theory problem book topological and function spaces по Tkachuk, V. V. (Vladimir Vladimirovich)

Available for University of the Philippines Diliman via SpringerLink. Click here to access

A sequence of problems on semigroups по Neuberger, J. W. (John W.) 1934-

Available for University of the Philippines Diliman via SpringerLink. Click here to access

The IMO compendium a collection of problems suggested for the International Mathematical Olympiads,1959-2009 по Djukic, Dusan

Available for University of the Philippines Diliman via SpringerLink. Click here to access

Theory of stochastic processes with applications to financial mathematics and risk theory

Unsolved problems in number theory по Guy, Richard K.

Winning solutions. по Lozansky, Edward

Theorems and counterexamples in mathematics по Gelbaum, Bernard R.

An outline of set theory по Henle, James M.

Problem-solving through problems по Larson, Loren C. 1937-