1. Factors Affecting the Productivity of Building Craftsmen–Studies of Uganda;Alinaitwe;Journal of Civil Engineering and Management,2007
2. A Sstakeholder Approach to Strategic Performance Measurement;Atkinson;Sloan Management Review,1997
3. Baba K (1995). Cultural Influences on Construction Management. Proceeding of the 1st International Conference on Construction Project Management, pp. 99-106, Singapore.
4. Bernstein HM (2007). Measuring Productivity in Construction: Improving Business Performance. Dodge Sweets Architectural Record ENR Regional Publications.
5. BPS (2007). Statistik Indonesia 2007. Biro Pusat Statistik Indonesia.(in Indonesian language).