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

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

A sequence of problems on semigroups von 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 von 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 von Guy, Richard K.

Winning solutions. von Lozansky, Edward

Theorems and counterexamples in mathematics von Gelbaum, Bernard R.

An outline of set theory von Henle, James M.

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