“The Impact of Humor Marketing in Achieving Customer Happiness: An Analytical Study of A Sample of Employees of Three Electrical Appliances Trading Companies (Balsan, Al-Hafdh and Shinon)”. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 53, no. 1 (August 17, 2023): 231–249. Accessed November 19, 2024. https://alhadhar.com/raf-journal/index.php/JAUCS/article/view/570.