1. Department of Physics, Universitas Airlangga, Surabaya, Indonesia
2. Department of Pharmaceutics, Institut Teknologi Bandung, Bandung, Indonesia
3. Department of Physics, Institut Pertanian Bogor, Bogor, Indonesia
4. Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia
5. Master of Biomedical Engineering, Department of Physics, Universitas Airlangga, Surabaya, Indonesia