Wickert, Jonathan, author
Cengage Learning, 2013
Buku Teks
Springer Singapore, 2019
eBooks
Husain, S.K.
Oxford & IBH Publishing Co., 1982
Buku Teks
Baumeister, Theodore
McGraw-Hill, 1958
Buku Referensi
Shigley, Joseph Edward, author
McGraw-Hill, 1983
Buku Referensi