O thou servant of His Holiness Baha'u'llah! The letters thou hadst written... The Star of the West must, at present, be written both in English and Persian.
SW.Star of the West, 25 vols. (1910-1935). Periodical issued each Bahá’í month. Vols. 1-12 reprinted 1978 in 8 volumes by George Ronald. Each issue Includes a section in Persian. https://bahai.works/Star_of_the_West