Webster, Donald H.
Harper & Row , 1958
Buku Teks
Matthew Carmon
Architectural Press/Elsevier, 2010
Buku Teks
Andrews, Richard B.
The Free Press, 1971
Buku Teks
Rifki Abdurrahman Noer
Fakultas Ilmu Administrasi Universitas Indonesia, 2020
UI - Skripsi Membership
American Association of State Highway and Transportation Officials, 1973
Buku Teks