1. Department of Physics, Hasanuddin University, Makassar 90245 Indonesia
2. Department of Fisheries, Hasanuddin University, Makassar 90245 Indonesia
3. Center for Research Instruments and Experimental Facilities, Chungbuk National University, Cheongju 28644, Korea
4. Department of Physics, Chungbuk National University, Cheongju 28644 Korea