1. Institute for Mathematical Research, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. Department of Mathematics and Statistics, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
3. Fakulti Teknologi Kejuruteraan Mekanikal dan Pembuatan, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia
4. Centre of Foundation Studies For Agricultural Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia