1. Department of Accounting, Faculty of Economics, Universitas Negeri Semarang, Semarang 50229, Indonesia
2. School of Civil and Mechanical Engineering, Faculty of Science and Engineering, Curtin University, Perth, WA 6102, Australia
3. Environmental Sustainability Research Group, Universitas Diponegoro, Semarang 50275, Indonesia
4. Department of Environmental Engineering, Faculty of Engineering, Universitas Diponegoro, Semarang 50275, Indonesia