Kazakhstan : le kobyz l'ancienne viole des chamanes = the kobyz the ancient viol of the shamans. Smagul Umbetbaev, Saian Aqmolda, kobyz. Alim K. Baïgarin et Aliaskar Dastenov, collecteurs
Umbetbaev, Smagul [1949-...] Inédit 2004
Online access. The library also has physical copies.