Eid, A.A.A.M. 2021. Unknown Linguist in the 6th Century AH Ibn Al-Teen Al-Sifaqsi (611 AH) and his Views on Language and Grammar. Arts for Linguistic & Literary Studies. 1, 7 (May 2021), 7–56. DOI:https://doi.org/10.53286/arts.v1i7.269.