Atlas of the World’s Languages in Danger . Christopher Moseley (ed.) (2010) · UNESCO Publishing http://www.unesco.org/culture/en/endangeredlanguages/atlas

World Oral Literature Project . http://www.oralliterature.org

The Red Book of the Peoples of the Russian Empire . (1993) · edited by Andrew Humphreys and Krista Mits · http://www.eki.ee/books/redbook

Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/

The World Atlas of Language Structures . (2005) · edited by Bernard Comrie and David Gil and Martin Haspelmath and Matthew S. Dryer · Oxford University Press

South Asia and the Middle East ( pp. 289-348 ch. 4 ) . George Van Driem (2007) · In Encyclopedia of the World's Endangered Languages edited by Christopher Mosely · London and NewYork: Routledge

Language Access and Tajik Language Proficiency among the Yazghulami of Tajikistan . Daniel Paul and Elisabeth Abbess and Katja Müller and Calvin Tiessen and Gabriela Tiessen (2010) · http://www.sil.org/resources/publications/entry/9099

Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·

Pāmir Languages ( pp. 417-444 ) . John Payne (1989) · In Compendium Linguarum Iranicarum edited by Rüdiger Schmitt · Wiesbaden: Dr. Ludwig Reichert

Kategorija roda ( pp. 7-116 ) . Efimov, V. A. (1975) · In Èvoljucija grammaticheskix kategorij Opyt istoriko-tipologicheskogo issledovanija iranskix jazykov · Vol. 2 · edited by Rastorgueva, V. S. · Nauka

Pamir languages ( pp. 417-44 ) . Payne, John R. (1989) · In Compendium Linguarum Iranicarum edited by Schmitt, R. · Reichert