Rago, Louis J.
Scranton: International, 1963
Buku Teks
Teuku Yuri M. Zagloel, author
Fakultas Teknik Universitas Indonesia, 1993
UI - Laporan Penelitian
Tooley, Desmond Francis, author
Gower Press, 1973
Buku Teks
Rage, Louis J., author
Scranton, Penn., International Textbook
Buku Teks
Carrol, Phil, author
New York, N.Y., McGraw-Hill
Buku Teks