I think for a book that analyzes for slope stability problem no one free. Besides that the discussion of the topic has generally much discussed.

Sorry, I don't know. Moreover, my main concern is the nonliner phenomenon of soil-structure interaction problem.

Dear Jasim

I think you should try and register with www.4shared.com.

After that you will be in a position to download loads of free engineering-related ebooks.

In attachment, you will find a sample of some ebooks I managed to download for my personal use

Cheers

Francois

i have to recommend you this paper for solving a rock slope stability. it is easy to learn and with very great benefit

http://www.researchgate.net/profile/Jiayi_Shen/publication/258113745_Chart-based_slope_stability_assessment_using_the_Generalized_HoekBrown_criterion/links/0046352fda34e0fa45000000.pdf

also i recommedn you to see a case study using another method in the following link too

https://www.rocscience.com/hoek/corner/7_A_slope_stability_problem_in_Hong_Kong.pdf

and finally you should reaqd this great book in the slope stability assessment and design by Wyllie and Mah which is very useful and fundamental also

http://www.beknowledge.com/wp-content/uploads/2010/10/c4ca4Rock_Slope_Engineering_Civil_and_Mining.pdf

Article Chart-based slope stability assessment using the Generalized...

I am really think you for your fast and interest reply

I think Soil Strength and Slope Stability J.Micheal Duncan and Stephen G. Wright is best book to understand Slope Stability problems