1. Department of Statistics, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar, South Sulawesi, Indonesia
2. Department of Management, Sekolah Tinggi Ilmu Ekonomi Ciputra Makassar, Makassar, South Sulawesi, Indonesia
3. Department of Mathematics, Faculty of Mathematics and Natural Sciences, Hasanuddin University, Makassar, South Sulawesi, Indonesia
4. Faculty of Economics and Business, Satya Wacana Christian University, Salatiga, Central Java, Indonesia
5. Department of Shipping Machinery, Politeknik Maritim AMI, Makassar, South Sulawesi, Indonesia
6. Department of Sharia Economic Law, Faculty of Sharia and Law, Universitas Islam Negeri Alauddin Makassar, Gowa, South Sulawesi, Indonesia