Yakan, Walī al-Dīn, 1873-1921. al-Ṣaḥaʼif al-sūd [taʼlīf] Walī al-Dīn Yakan. Ḥaqqaqahu wa-qaddama lahu Jubrān Masʻūd. - [al-Ṭabʻah 1] - Bayrūt, Bayt al-Ḥikmah [1966] - 170 p. port. 20 cm. - Raʻīl al-nahḍah, 2 . LCCN: ne 68004744 LC Class. No.: PJ7870.A5 / S2 1966