1. Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga , Surabaya , Indonesia
2. Biotechnology of Tropical Medicinal Plants Research Group, Universitas Airlangga , Surabaya , Indonesia
3. Centre for Tuberculosis Research, Nigerian Institute of Medical Research, Yaba , Lagos , Nigeria
4. Postdoc Fellow Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga , Surabaya , Indonesia