1. Atta-ur-Rahman Institute for Natural Product Discovery (AuRIns), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Kuala Lumpur, Selangor, Malaysia
2. Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
3. Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Perak, Malaysia