Gh-Bedewy W, Salih O, Ahmad A. Synthesis of New Pyrazolines Derivatives from Coumarine Compounds. JES [Internet]. 2011 Sep. 1 [cited 2025 Oct. 26];24(3):34-40. Available from: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41864