1. Data Perumahan BPS Harus Dijadikan Acuan. Departemen Pekerjaan Umum (2017).
2. Gray, C. F. and Larson, E. W., Project Management: The Managerial Process (The Mac Graw Hill Companies, Inc., 2006).
3. K. Lukiyanto, M. Setiawan, E. A. Troena, Noermijati. Australian Journal of Basic and Applied Sciences, 9, 191–197 (2015).
4. Reconstructing the Indigenous in African Management Research
5. P. Kreiser, L. Marino, K. M. Weaver, University of Alabam, Department of Management and Marketing. 2005.