Atʻayan, Ṛ. A., <br/><br/>
The Armenian Neume System of Notation : 

 -  Psychology Press,  1999. 
 - 298 pages 
<br/><br/><label>ISBN: </label>9780700706365 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Foreign Language Study.
<br/><br/><label>Dewey Class. No.: </label>780.148  / ATA