Alan Davidson(1999).The Oxford Companion to Food.Oxford University Press.pp.456.ISBN978-0192806819.https://books.google.com/books?id=RL6LAwAAQBAJ&pg=PA459."Lavash a thin crisp bread usually made with wheat flour made in a variety of shapes all over the regions of the Caucasus, Iran (where it is often so thin as to be like tissue and can be almost seen through), and Afghanistan. It is leavened and baked in a tandoor. Lavash is served with kebabs and is used to scoop up food or wrap round food before being eaten. The Turkish yufka is similar, but is unleavened and cooked on a griddle, called a saj. Its origins are ancient and it is also known as lavaş depending on the region. As in the other countries of this region large batches of this bread are made and stored for long periods. In Turkey they are stored on a board suspended by all four corners from the ceiling. The bread becomes dry and is restored by sprinkling with water and reheated as and when needed. Yufka is also used in the same way as filo pastry to encase various fillings."
Chattman,Lauren(2011).Bread Making: A Home Course: Crafting the Perfect Loaf, From Crust to Crumb.Storey Publishing.p.202.ISBN978-1603427005."Lavash is a thin, yeast-raised flatbread that originated in Armenia and is now popular in a much wider area that includes Turkey, Georgia, and Iran."
Morgan,Diane(2010).Skinny Dips.Chronicle Books.p.14.ISBN978-1452100241."Lavash, lavosh, or lahvosh is a gigantic, paper-thin, blistery, tortilla-like flatbread common throughout Armenia, Turkey, and Iran."
Goldstein,Darra(1999).A Taste of Russia: A Cookbook of Russian Hospitality(2nd ed.).Montpelier, VT:Russian Life Books.p.185.ISBN9781880100424."Armenian Flat Bread Lavash: Lavash has been baked for centuries in Armenia."
Khanam,R.(2005).Encycl. Ethnography Of Middle-East And Central Asia (3 Vols. Set)(1st ed.).New Delhi:Global Vision.p.55.ISBN9788182200623."The t'onir is a round hole dug in the ground, which can be used for baking Armenian flat bread (lavash) and for heating the home in winter."
Albala, Ken, ed.Food Cultures of the World Encyclopedia, Volume 1.Santa Barbara, Calif.:Greenwood.p.5.ISBN9780313376269."...on lavash, a traditional flatbread of Armenia similar to tortilla..."
Sergio O. Serna-Saldivar(2012).Cereal Grains: Laboratory Reference and Procedures Manual..CRC Press.p.217.ISBN9781439855652."Lavash is another popular flat cracker bread with ancient roots in Armenia."
Reinhart,Peter(2011).The Bread Baker's Apprentice: Mastering the Art of Extraordinary Bread.Potter/TenSpeed/Harmony.p.178.ISBN978-1607741299.""Lavash, though usually called Armenian flatbread, also has Iranian roots (...)""