Grava, Sigurd, author
McGraw-Hill , 2003
Buku Teks
Genevieve Giuliano, Susan Hanson, editors
Guilford Press, 2017
Buku Teks
Small, Kenneth A., author
Routledge, 2007
Buku Teks
Wahyu Purnamayoga, author
Fakultas Teknik Universitas Indonesia, 2014
UI - Skripsi (Membership)
Black, Alan, author
McGraw-Hill, 1995
Buku Teks