1. Faculty of Civil Engineering and Technology, Universiti Malaysia Perlis, Arau, Malaysia
2. Centre of Excellence for Water Research and Environmental Sustainability Growth (WAREG), Universiti Malaysia Perlis, Arau, Malaysia
3. Environmental Health Division, Department of Public Health, Universitas Nahdlatul Ulama Surabaya, Surabaya, Indonesia
4. Center for Environmental Health of Pesantren, Universitas Nahdlatul Ulama Surabaya, Surabaya, Indonesia
5. Department of Biological Sciences, Nicholls State University, Thibodaux, LA, USA