University of Duisburg-Essen, Islamic Azad University, Najafabad Branch, Universiti Kebangsaan Malaysia - Faculty of Education, National University of Malaysia (UKM), National University of Malaysia (UKM), Universiti Teknologi MARA (UiTM), Centre for Research Services, Institute of Management and Research Services (IPPP), University of Malaya (UM)University of Malaya (UM) - Department of Engineering Design and Manufacture and University of Malaya (UM)

University of Duisburg-Essen and National University of Malaysia (UKM)

National University of Malaysia (UKM), Centre for Research Services, Institute of Management and Research Services (IPPP), University of Malaya (UM)University of Malaya (UM) - Department of Engineering Design and Manufacture, University Malaya, University of Duisburg-Essen and Center for Software Technology and Management, Faculty of Information Science and Technology, Universiti Kebangsaan Malaysia