Sources:
"Georgian
Folk Music Instruments." Georgian Folk Music Instruments. N.p., n.d. Web.
19 Mar.
2014.
<http://www.hangebi.ge/eng/instruments.html>.
"Georgian
Voices." Georgian Voices. N.p., n.d. Web. 19 Mar. 2014.
<http://www.nab.am/ywmf/Artists/georvoi.htm>.
"Jethro
Tull." PopMatters. N.p., n.d. Web. 19 Mar. 2014.
<http://www.popmatters.com/review/133782-jethro-tull-stand-up-expanded-collectors-
edition/>.
"Jethro
Tull | Ian Anderson." Jethro Tull. N.p., n.d. Web. 19 Mar. 2014.
<http://jethrotull.com/the-attic/musical-instruments/ian-anderson/>.
Manjgaladze,
Ketevan. "Varieties of Krimanchuli (Yodel) in West Georgia's Folk
Songs."
Polyphony. N.p., n.d. Web. 19 Mar. 2014.
<http://www.polyphony.ge/uploads/simposium/eng2/manjgaladze_krimanchuli.pdf>.
Unterberger,
Richie. "1960s Folk-Rock Overview." AllMusic. N.p., n.d. Web. 19 Mar.
2014.
<http://www.allmusic.com/>.