Shatha Shaker Yaqoot and Assist. Prof. Dr. Mervat Yousef Kadhim 2020. The Phenomenon of Substituting one Letter for another between Abu Amr bin Ala’a and the Tamim Tribe: (A phonological and analytical study). Journal of Arts, Literature, Humanities and Social Sciences. 59 (Oct. 2020), 18-34. DOI:https://doi.org/10.33193/JALHSS.59.2020.272.