Van Duyn, Julia, author
Reston Publishing Company, Inc ., 1975
Buku Teks
Aulia Havidz, author
Fakultas Teknik Universitas Indonesia, 2013
UI - Skripsi (Membership)
edited by Mohinder L. Nayyar
McGraw-Hill, 2000
Buku Referensi
King, Reno C., author
McGraw-Hill, 1967
Buku Referensi
Waller, Jenny, author
Pustaka Binaman Pressindo, 1994
Buku Referensi