Izvornik: 30-Minute Choir Book, Volume 4. Soprano Rehearsal Track CD. 30-Minute Choir Book, Volume 4. Various. Choir sheet music.
Prijevod: 30-Minute zbor knjiga, Volume 4. Sopranistica probe Track CD. 30-Minute zbor knjiga, Volume 4. Raznovrstan. Zbor note.