1. Nicholas A. Phelps is Professor of Urban and Regional Development, University College London, Bartlett School of Planning, 14 Upper Woburn Place, London WCIH 0NN;
2. Holi B. Wijaya is Associate Professor of Urban and Regional Planning, Diponegoro University, Department of Urban and Regional Planning, Kampus UNDIP Tembalang, Semarang, Central Java 50275;