KEMENTRIAN PERHUBUNGAN REPUBLIK INDONESIA,
Majalah, Jurnal, Buletin
Endah Wahyuningtias, author
Universitas Indonesia, 2008
UI - Skripsi (Open)
Artikel Jurnal
Germane, Gayton E., author
Addison-Wesley, 1983
Buku Teks
Lieb, Robert C.
Reston Publ, 1985
Buku Teks