(Ziyad bin ‘Ali bin Hamid al-Harithi ) ز. ع. ح. ا., “صورة هارون الرشيد في شعر العصر العباسي الأول / The image of Harun al-Rasyeed in the poems of the first period of the ‘Abbasid”, Journal of Linguistic and Literary Studies, vol. 6, no. 1, Oct. 2015.