H. Jumaah, Mahmood, Haydar Sh. Nouri, and Hamza H. Yasseen. 2019. “The Effect of Human Engineering Applications on Employees Happiness through Job Satisfaction: An Exploratory Study at the College of Engineering Al-Mustansiria University”. TANMIYAT AL-RAFIDAIN 38 (124):43-64. https://doi.org/10.33899/tanra.2019.164120.