1. Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia
2. Department of Architecture and Planning, Universitas Gadjah Mada, Yogyakarta, Indonesia
3. Department of Physics, Universitas Negeri Gorontalo, Gorontalo, Indonesia
4. Department of Civil Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
5. Department of Civil Engineering, Universitas Trisakti, Jakarta, Indonesia