1. Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
2. National Primate Research Center of Thailand, Chulalongkorn University, Saraburi, Thailand
3. Department of Psychology, Faculty for Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
4. Department of Anthropology and Sociology, Faculty of Arts and Social Sciences, University Malaya, Kuala Lumpur, Malaysia
5. Department of Urban and Regional Planning, Faculty of Built Environment, Universiti Malaya, Kuala Lumpur, Malaysia