გამოყენებული ლიტერატურა:

1. http://www.jstor.org/action/doBasicSearch?Query=great+britan&acc=on&wc=on
2. https://www.google.ge/search?hl=ka&q=%E1%83%98%E1%83%A2%E1%83%90%E1%83%9A%E1%83%98%E1%83%90&bav=on.2,or.r_gc.r_pw.,cf.osb&biw=1280&bih=850&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=vGLQT6SxD4zjtQa1r_z0DQ
3. https://www.google.ge/search?um=1&hl=ka&biw=1280&bih=850&tbm=isch&sa=1&q=%E1%83%A1%E1%83%90%E1%83%A4%E1%83%A0%E1%83%90%E1%83%9C%E1%83%92%E1%83%94%E1%83%97%E1%83%98%5C&oq=%E1%83%A1%E1%83%90%E1%83%A4%E1%83%A0%E1%83%90%E1%83%9C%E1%83%92%E1%83%94%E1%83%97%E1%83%98%5C&aq=f&aqi=&aql=&gs_l=img.3...13399.16966.0.16966.0.0.0.0.0.0.0.0..0.0...0.0.KYZpayVxsKU
4. https://www.google.ge/search?um=1&hl=ka&biw=1280&bih=850&tbm=isch&sa=1&q=%E1%83%92%E1%83%94%E1%83%A0%E1%83%9B%E1%83%90%E1%83%9C%E1%83%98%E1%83%90&oq=%E1%83%92%E1%83%94%E1%83%A0%E1%83%9B%E1%83%90%E1%83%9C%E1%83%98%E1%83%90&aq=f&aqi=&aql=&gs_l=img.3...12459.14267.0.14554.0.0.0.0.0.0.0.0..0.0...0.0.fVgMM8I_Fic
5. http://ka.wikipedia.org/wiki/%E1%83%A2%E1%83%A3%E1%83%A0%E1%83%98%E1%83%96%E1%83%9B%E1%83%98
6. http://education.ge/index.php?do=definition/view&id=944