Fakultas Teknik Universitas Indonesia, 1997
UI - Skripsi (Membership)
Stern, G.B., author
Longman, 1952
Buku Teks
Ross, Lillian, author
J.B. Lippincott, 1966
Buku Teks
compiled and edited by Bill Adler
Doubleday, 1966
Buku Teks
Muller, Herbert J., author
Harper & Row, 1967
Buku Teks