Asst. Lect. Omar Abdulwahhab Khalaf, a lecturer from the College of Arts and Letters – Department of Interior Design, Cihan University-Erbil, was published in International Conference on Regional Architecture and Built Environment (SeniBINA) on March 2019. It was entitled “User-friendly Streets for a Walkable, Liveable and Sustainable Environment: A Review”. ISBN: 978-967-2224-18-1.