“The Linguistic Roots of the Doubled and the Three Letter Irregular Weak Verb: A Study in the Morphological Formation. The Book of Verbs As an Example”. Journal of Misan Researches, vol. 17, no. 33, May 2021, pp. 111-40, https://jmr.uomisan.edu.iq/index.php/jmr/article/view/45.