1Sustainable and Responsive Manufacturing Research Group, Faculty of Manufacturing Engineering,
Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100, Durian Tunggal, Melaka, Malaysia
2Advanced Manufacturing Research Group, Faculty of Engineering and Built Environment,
Universiti Kebangsaan Malaysia, UKM Bangi 43600, Selangor, Malaysia
3Department of Language Studies, Universiti Technologi MARA Cawangan Kedah,
P.O. Box 187, 08400 Merbok, Kedah, Malaysia
Submission date: 2014-12-12
Final revision date: 2015-03-06
Acceptance date: 2015-03-15
Publication date: 2015-07-27
Pol. J. Environ. Stud. 2015;24(4):1463–1475