1. UCSI University,Faculty of Engineering, Technology and Built Environment,Cheras, Kuala Lumpur,Malaysia,56000
2. Jenderal Soedirman University,Department of Civil Engineering,Purwokerto,Indonesia,53371
3. Universiti Tenaga Nasional (UNITEN),Department of Civil Engineering,Kajang,Selangor Darul Ehsan,Malaysia,43000