Buku yang Dikarang by Gustav Holst

25 Christmas Duets for Flute - VOL.2

25 Christmas Duets for Flute and Clarinet - VOL.2

25 Christmas Duets for Clarinet - VOL.2

25 Christmas Duets for Trumpet or Trombone T.C. vol.2

25 Christmas Duets for soprano recorder - VOL.2

25 Christmas Duets for Trombone or Euphonium - VOL.2

25 Christmas Duets for Eb Alto & Bb Tenor Saxes - VOL.2

25 Christmas Duets for Cello or Bassoon - VOL.2

25 Christmas Duets for altos or tenors saxes - VOL.2

25 Christmas Duets for French Horn in F - VOL.2