Keighley, H.J.P.
Pergamon Press, 1975
Buku Teks
Fowler, Richard J.
McGraw-Hill , 2003
Buku Teks
Eaton, J.R.
The McMillan, 1952
Buku Teks
Stranti Nastiti Kusumaningrum
Faculty of Economic and Business UIN Syarif Hidayatullah, 2018
Artikel Jurnal
Asril Irsadi
Fakultas Teknik Universitas Indonesia, 2019
UI - Tesis Membership