40 Progressive Studies. Composed by Philip Sparke. Exam Material. Book Only. Composed 2004. 28 pages. Anglo Music Press #AMP 096-401. Published by Anglo Music Press (BT.AMP-096-401).
By Jean Castelain and Michiel Oldenkamp. Écouter, Lire et Jouer. Educational Tool. Book Only. Composed 2000. 24 pages. De Haske Publications #DHP 1002369-401. Published by De Haske Publications (BT.DHP-1002369-401).