Ralph Kirkpatrick, "On Playing the Clavichord," Early Music, Vol. 9, No. 3, Wind Issue (Jul., 1981), pp. 293-305 (Oxford University Press). Abstracts found at JSTOR and Oxford Journals websites. All accessed July 20, 2010. نسخة محفوظة 27 نوفمبر 2018 على موقع واي باك مشين.
oxfordjournals.org
em.oxfordjournals.org
Ralph Kirkpatrick, "On Playing the Clavichord," Early Music, Vol. 9, No. 3, Wind Issue (Jul., 1981), pp. 293-305 (Oxford University Press). Abstracts found at JSTOR and Oxford Journals websites. All accessed July 20, 2010. نسخة محفوظة 27 نوفمبر 2018 على موقع واي باك مشين.
web.archive.org
Ralph Kirkpatrick, "On Playing the Clavichord," Early Music, Vol. 9, No. 3, Wind Issue (Jul., 1981), pp. 293-305 (Oxford University Press). Abstracts found at JSTOR and Oxford Journals websites. All accessed July 20, 2010. نسخة محفوظة 27 نوفمبر 2018 على موقع واي باك مشين.
