1-4 of 4 Books

Algorithms for minimization without derivatives
By R. P. Brent

Methods for unconstrained optimization problems
By Janusz S. Kowalik

Minimization algorithms, mathematical theories, and computer results
By Seminar on Minimization Algorithms University of Cagliari 1971.

Extremeum Problems for Bounded Univalent Functions II
By O. Tammi