Best travel guide book for Panama?

I usually always use Lonely Planet books. But everyone seems to be a giving the Panama edition bad reviews. Any other suggestions?
I've traveled all over the world. I like the places are poor and dirty. They build character.

Panama is a POOR country! It is CRIME filled country! It is TERRIBLE country!

you can get much information in this website, kindly stay a minute in website.

http://www.ppchero.com/panama-handbook/

free online guide books

http://www.worldheadquarters.com/guide_books/