1. Summary of Country/City Synthesis Reports Across Asia;ADB,2006
2. Force field analysis—a framework for strategic thinking;Ajimal;Long Range Planning,1985
3. Managing in the age of modularity;Baldwin;Harvard Business Review,1997
4. Baldwin, C., Clark, K., 2004. Modularity in the design of complex engineering systems. Working Paper, 35pp.
5. CEBPQMI, 2006.Quality of Lead-acid Batteries for Electric-Assist Bicycle Analysis Report (2006 2 ). Center for Electric Bicycle Products Quality Monitoring & Inspection.