


101 Problems in Algebra
Titu Andreescu, Zuming Feng

102 Combinatorial Problems
Titu Andreescu, Zuming Feng

104 Number Theory Problems
Titu Andreescu, Dorin Andrica, Zuming Feng

A Beautiful Journey through Olympiad Geometry
Stefan Lozanovski

An Introduction to Diophantine Equations
Titu Andreescu, Dorin Andrica, Ion Cucurezeanu