1. Lecturer, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar, Perak 31900, Malaysia (corresponding author).
2. Managing Partner, CDP Partnership, Ltd., No. 3 Borno Rd. Marafa, Off Independence Way, Kaduna, Nigeria.
3. Lecturer, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar, Perak 31900, Malaysia.