For a detailed discussion on natural surveillance and CPTED, see Fennelly, Lawrence J. (2012). Effective Physical Security. Butterworth-Heinemann. pp. 4–6. ISBN9780124158924. Archived from the original on 2018-01-05.
For a detailed discussion on natural surveillance and CPTED, see Fennelly, Lawrence J. (2012). Effective Physical Security. Butterworth-Heinemann. pp. 4–6. ISBN9780124158924. Archived from the original on 2018-01-05.