Who Moved My Cheese?: An Amazing Way to Deal with Change in Your Work and in Your Life <g:plusone href="http://www.books-by-isbn.com/0-399/0399144463-Who-Moved-My-Cheese-An-Amazing-Way-to-Deal-with-Change-in-Your-Work-and-in-Your-Life-0-399-14446-3.h

מאת Spencer Johnson