(8 Contemporary Duets on Popular Holiday Songs). Edited by Andy Beck. For Voice. Book; CD; Duet or Duo; Vocal Collection. For Two Series. Christmas; Secular; Winter. 72 pages. Published by Alfred Music

(Vocal Duets). For voice duet, piano. Sacred. Published by SoundForth

(The Career Guide to Becoming a Professional Singer). By Jaime Babbitt. For Voice. Book; Method/Instruction; Technique Musicianship; Vocal Method. 264 pages. Published by Alfred Music Publishing