1. Faculty of Applied Science Studies, Universiti Teknologi MARA, Kota Samarahan, Sarawak, Malaysia
2. Department of Paraclinical Sciences, Faculty of Medicine and Health Sciences, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia
3. Centre for Drug Research, Universiti Sains Malaysia, Pulau Pinang, Malaysia
4. School of Chemical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia