Kumakhov, Mukhadin and Vamling, Karina. 2006. Èrgativnostʹ v čerkesskix jazykax. Malmo University.
@book{jacquesestimative-kumakhov2006, author = {Kumakhov, Mukhadin and Vamling, Karina}, publisher = {Malmo University}, title = {Èrgativnostʹ v čerkesskix jazykax}, year = {2006} }