1. Columbia University Rare Book & Manuscript Library, MS X893 M6858 DS ID: DS18597 Title: Letter and Hebrew text Author: Yonah Gerondi Place: Morocco Date: 1696.
2. Columbia University Rare Book & Manuscript Library, MS X893 M6858 DS ID: DS19528 Title: Letter and Hebrew text Author: Yonah Gerondi Place: Morocco Date: 1696.