http://www.mapsofworld.com/serbia/geography-and-history/
http://www.fasttrackteaching.com/burns/Unit_7_WW1/U7_WW_I_screen_map.html
http://en.wikipedia.org/wiki/Flag_of_Serbia#mediaviewer/File:Civil_Flag_of_Serbia.svg
http://www.panacomp.net/serbia?s=religija_srbije
http://www.panacomp.net/serbia?s=kultura_srbija
http://www.ieeeghn.org/wiki/index.php/World_War_I_Technology
http://www.answers.com/Q/Did_Serbia_win_world_war_1
http://en.wikipedia.org/wiki/Serbian_Campaign_of_World_War_I
http://www.reiss-institute.org/articles/serbias-losses-1914-1918/
https://www.khanacademy.org/humanities/history/euro-hist/other-fronts-ww1/v/serbian-losses-in-world-war-i
http://en.wikipedia.org/wiki/Allies_of_World_War_I#mediaviewer/File:Map_Europe_alliances_1914-en.svg
http://www.fasttrackteaching.com/burns/Unit_7_WW1/U7_WW_I_screen_map.html
http://en.wikipedia.org/wiki/Flag_of_Serbia#mediaviewer/File:Civil_Flag_of_Serbia.svg
http://www.panacomp.net/serbia?s=religija_srbije
http://www.panacomp.net/serbia?s=kultura_srbija
http://www.ieeeghn.org/wiki/index.php/World_War_I_Technology
http://www.answers.com/Q/Did_Serbia_win_world_war_1
http://en.wikipedia.org/wiki/Serbian_Campaign_of_World_War_I
http://www.reiss-institute.org/articles/serbias-losses-1914-1918/
https://www.khanacademy.org/humanities/history/euro-hist/other-fronts-ww1/v/serbian-losses-in-world-war-i
http://en.wikipedia.org/wiki/Allies_of_World_War_I#mediaviewer/File:Map_Europe_alliances_1914-en.svg