1. Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam;
2. Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam;
3. Department of Chemical Engineering Faculty of Industrial Technology, Bandung Institute of Technology, Bandung, Indonesia;
4. Department of Refrigeration and Air Conditioning, Politeknik Negeri Bandung, Gegerkalong Hilir Ciwaruga, Bandung, Indonesia