Materiála du geavahussii : The certified quality process analyst handbook / Chris Christensen, Kathleen M. Betz, and Marilyn S. Stein.

Bajilčálus : The certified quality process analyst handbook / Chris Christensen, Kathleen M. Betz, and Marilyn S. Stein.

Hildobáiki : Ii hildodieđu

Dilli : Dovdameahttun