Vermeulen, Nico
Rebo International, 1998
Buku Referensi
Vermeulen, Nico
Rebo , 1998
Buku Referensi
Eko Dafiyani
Fakultas Teknik Universitas Indonesia, 2014
UI - Skripsi (Membership)
Philbrick, John H.
Harper & Row, 1963
Buku Teks
Crockett, James Underwood
Time-life books, 1975
Buku Teks