Clarfield, I. J., & Guy, S. W. (1996). From mystery to mastery: A unique and exciting step-by-step approach to practicing and performing favorite piano repertoire from four stylistic periods : study guide. Alfred Pub.
Lua i Stíl Chicago (17ú heag.)Clarfield, Ingrid Jacobson, agus Suzanne West Guy. From Mystery to Mastery: A Unique and Exciting Step-by-step Approach to Practicing and Performing Favorite Piano Repertoire from Four Stylistic Periods : Study Guide. Van Nuys, Calif: Alfred Pub, 1996.
Lua MLA (9ú heag.)Clarfield, Ingrid Jacobson, agus Suzanne West Guy. From Mystery to Mastery: A Unique and Exciting Step-by-step Approach to Practicing and Performing Favorite Piano Repertoire from Four Stylistic Periods : Study Guide. Alfred Pub, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.