MOHSEN, O. A.; AL-KUBAISI, O.; SALIH, S. M.; HATHAL, M. M.; MAHUOF , A. A. STUDY THE EFFECT OF LONGITUDINAL TAPERED FINS AND PINNED FINS IN A VERTICAL DUCT ON COOLING SURFACE TEMPERATURE. Journal of Duhok University, v. 26, n. 2, p. 314-324, 28 Nov. 2023.