Ass. Prof. Zainab Al-Baldawi, Ayat Sabah Kathem, Ass. Prof. Dr. Luma A.H.Al-Kindi,. 2021. “Integration of Lean Concepts and Line Balancing Focusing on Value Adding Activities”. Design Engineering, September, 6263-75. http://www.thedesignengineering.com/index.php/DE/article/view/4060.