- A Supplement to 'Abdu'l-Bahá in Europe, 1912-1913, Adib Masumian, comp. (2023). A supplement to ‘Abdu'l-Bahá in Europe, 1912–1913 comprising about 200 of ‘Abdu'l-Bahá's talks and other oral remarks, approved translations of 27 selections from His Tablets about His journey to the West, and a biography of Mírzá Maḥmúd Zarqání.
- Abdu'l-Bahá in Europe, 1912-1913: The Talks and Travels of the Master as Recorded by Mírzá Maḥmúd Zarqání [contents, biographies, index], by Mirza Mahmud-i-Zarqani, Abdu'l-Bahá, Adib Masumian, trans, Farnaz Ma'sumian, trans. (2024-05). Front and back matter only (table of contents, selected biographical notes, and index).
- Ambassador at the Court: The Life and Photography of Effie Baker, by Graham Hassall (1999). Extensive biography of Effie Baker, an early Australian Bahá'í.
- Bahá'í Faith in England and Germany, 1900-1913, by Robert Stockman (1996 Spring). Historical overview of the early years of the Faith in the British Isles and Germany.
- Reception of 'Abdu'l-Bahá in Britain: East Comes West, by Brendan McNamara, The: Review, by Robert Stockman (2024-12).
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