Hadamard's plane geometry : a reader's companion /

by Saul, Mark E., Saul, Mark E.
Published 2010

Trigonometry /

by Gelfand, Izrail Moiseevich, Gelfand, Izrail Moiseevich, Saul, Mark E.
Published 2001

Lesson in geometry /

by Hadamard, Jacques 1865-1963, Hadamard, Jacques 1865-1963
Published 2008

Mathematical olympiad challenges /

by Andreescu, Titu 1956-, Andreescu, Titu 1956-, Gelca, Razvan
Published 2009