M. Variščić. Udruženje za zaštitu okoline Zeleni - Neretva ; Fondacija Heinrich Böll, Regionalni ured Sarajevo, Konjic ; Sarajevo, Third edition, (2011)
N. Diakopoulos, and D. Shamma. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, page 1195--1198. New York, NY, USA, ACM, (2010)