1. a Civil Engineering Department, Politeknik Negeri Ujung Pandang, P.O. Box 90245, Makassar, South Sulawesi, Indonesia
2. b Faculty of Engineering, Universitas Sawerigading Makassar, Makassar, Indonesia
3. c Department of Civil Engineering, Universitas Muhammadiyah Maluku Utara, Ternate City, Indonesia
4. d Doctoral Student of Engineering Faculty, Universitas Hasanuddin, Makassar, Indonesia