Reference request for Minimal Surfaces. I need books or articles based on minimal surfaces. By minimal surface, I mean a surface with 0 mean curvature.
More specifically, I wish to explore the Plateau's Problem: There exists a minimal surface with a given boundary. 
I would also like to see a proof of the fact that a surface of revolution that is minimal is either a plane, helicoid or a catenoid. 
As a supplementary text, could I also have a reference for calculus of variations? (Unimportant, but why is calculus of variations not taught as a course in universities?)
Thank you for your time. 

some nice texts are the following


*

*Geometric Measure Theory and Minimal Surfaces - Bombieri, E.

*Lectures on Geometric Measure Theory - Simon, L.

*Minimal Surfaces and Functions of Bounded Variation - Giusti, E. 

*Sets of Finite Perimeter and Geometric Variational Problems - Maggi, F.

*Calculus of Variations and PDEs - Ambrosio, L. & Norman, D.

*Gamma Convergence for Beginners - Braides, A.

