Cho, Gene J. <br/><br/>
Melodic, dyadic, and harmonic singing :  graded exercises / 
Gen e J. Cho. 
 - 3rd ed. 
 - Dubuque, Iowa :  Kendall/Hunt Pub. Co.,  c1989. 
 - vi p., 58 p. of music ;  28 cm. 
<br/><br/><label>ISBN: </label>0840351178 
<br/><br/><label>LCCN: </label>93-724419 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sight-singing.<br/>Ear training.<br/>Singing-- Studies and exercises.