ALSWARY, T.I.A. and SULAIMAN, M.S.A. 2023. A CORPUS-BASED CONTRASTIVE ANALYSIS OF CERTAINTY AND DOUBT ADVERBIALS IN ACADEMIC DISCOURSE BY NATIVE ENGLISH AUTHORS AND NON-NATIVE KURDISH AUTHORS . Journal of Duhok University. 26, 2 (Oct. 2023), 604-618. DOI:https://doi.org/10.26682/hjuod.2023.26.2.37.