Scholarship on Letter: T-S 20.49
Letter T-S 20.49- Bibliographic citation
- S. Abramson, Ba-merkazim uva-tefutsot bi-tekufat ha-Geʻonim (in Hebrew) (Jerusalem: Mosad ha-Rav Kuk, 1965).
- for digital edition, edition see
- pp. 126-130
- Bibliographic citation
- S. D. Goitein, index cards.
- for discussion see