1. School of Wood Industry, Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Pahang Kampus Jengka, 26400 Bandar Tun Razak Pahang, Malaysia
2. Centre of Research in Ionic Liquids, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
3. Fundamental and Applied Science Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
4. Terra Mineral Lab Sdn Bhd, Level 16, Perak Techno Trade Centre Bandar Meru Jaya, Off Jalan Jelapan, Ipoh 30020, Perak Darul Ridzuan, Malaysia