- Author: Kristian Bankov, Ivan Kasabov, Mony Almalech, Borislav Gueorguiev, George Tsonev, Reni Iankova, Dimitar Trendafilov, Ivo Iv. Velinov, Yagodina Manova, Boyka Batchvarova (eds.)
- Language: English, French, Spanish
- Year: 2017
- Author: Mony Almalech
- Language: English
- Year: 1996