Nasruldeen Amhimmid Alsuwaye Alfirjani, “Grammatical and rhetorical interpretation of twenty Quranic verses containing disputed letters: an analytical study”, Al-Imad J. Humanit. Appl. Sci., vol. 2, no. 2, pp. 297–320, Jul. 2026, doi: 10.64943/ajhas.2026.020222.