1. Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, Indonesia
2. Department of Pharmaceutics, Faculty of Pharmacy, Universitas Airlangga, Surabaya 60115, Indonesia
3. Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Malaya, Kuala Lumpur, Malaysia
4. Faculty of Pharmacy, University Kebangsaan Malaysia, Kuala Lumpur, Malaysia