1. Department of Pharmacy, Faculty of Health Sciences, Alma Ata University, 55184 Bantul, Yogyakarta, Indonesia
2. Drug and Herbal Centre, Faculty of Pharmacy, National University of Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50330, Malaysia
3. Malaysian Nuclear Agency, 43000 Kajang, Bangi, Malaysia
4. Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjung Malim 35900, Malaysia