هديل عبد الحليم داود البكر م. “The Syntactic Formation of the Uses of Haythu (where ) in the Holy Koran and Its References”. College of Basic Education Research Journal, vol. 11, no. 4, Dec. 2012, pp. 215-38, https://moss.uomosul.edu.iq/index.php/berj/article/view/39129.