BULGARIAN MATHEMATICAL OLYMPIAD 1960-2008

LINK
http://issuu.com/fredi1008/docs/bulgarianmo1960_2008/1

Petkov - Relativity and the Nature of Spacetime (Springer, 2005)

LINK
http://issuu.com/alfredogonzalezg/docs/petkov---relativity-and-the-nature-of-spacetime--s/1

A FIRST COURSE IN GENERAL RELATIVITY BERNARD SHUTZ

LINK
http://issuu.com/quiasma/docs/0521887054relativ/1

DAVID BURTON ELEMENTARY NUMBER THEORY

DIRECT LINK
http://issuu.com/kftsang88/docs/_david_m._burton__elementary_number/1

Compiled and Solved Problems in Geometry and Trigonometry FLORENTIN SMARANDACHE

LINK ORIGINAL
http://issuu.com/florentinsmarandache/docs/compiledsolvedproblems/1

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Compiled and Solved Problems in Geometry and Trigonometry This book includes problems of 2D and 3D Euclidean geometry plus trigonometry. The degree of difficulties of the problems is from easy and medium to hard. The solutions of the problems are at the end of each chapter. One can navigate back and forth from the text of the problem to its solution using bookmarks. The book is especially a didactical material for the mathematical students and instructors.

Physics for you – february 2015 Shervin Hashemi

LINK
http://issuu.com/shervinhashemi/docs/physics_for_you_____february_2015/1

Physics Olympiad : basic to advanced exercises Committee of Japan Physics Olympiad

LINK ORIGINAL  WEB
http://bookzz.org/book/2462553/f8f50f
LINK BOOK ( FORMAT PDF )
http://bookzz.org/dl/2462553/6f40d5
LINK ALTERNATIVO
https://copy.com/tp3HKtombfbWWRD0

International physics olympiads: Problems and solutions from 1967-1995 Manilerd

LINK ORIGINAL WEB 

http://bookzz.org/book/1022867/43ce9b

LINK BOOK (FORMAT DJVU )

http://bookzz.org/dl/1022867/15d9b1

LINK  ALTERNATIVO ( FORMAT PDF )

https://copy.com/0yByi4Unn9wnsgQE