Arvo Part score ?

Any one got access to Arvo Parts music scores for piano (and more)? I've tried a few options, but can't seem to find any.

thanks.

malc .........................................

PS8106 Partita for Piano, Op.2 (1959) PART, ARVO 12.95 Classical Piano Repertoire Universal

PS8401 Two Sonatinas, Op.1 (1958) PART, ARVO 19.95 Classical Piano Repertoire Universal

PS3742 Variationen zur gedundung von Arinuschka; Fur Alina PART, ARVO 9.95 Classical Piano Repertoire Universal