Macmillan Education, 1988
Buku Teks
Hardie, Glenn M.
Prentice-Hall, 1995
Buku Teks
Bibhuti Bhusan Das, Narayanan Neithalath, editors
Springer Nature, 2019
eBooks
Marotta, Theodore W.
Prentice-Hall, 1997
Buku Teks
Kottas, Dimitris
Basheer , 2011
Buku Referensi