Armstrong, Bruce K., author
Oxford University Press, 1994
Buku Referensi
Armstrong, Bruce K., author
Oxford University Press, 1994
Buku Teks SO
MacMahon, Brian, author
Little, Brown and Company, 1970
Buku Teks SO
Merrill, Ray M., author
Jones & Bartlett Learning, 2016
Buku Teks SO
Chattopadhyay, Amit, 1963-, author
Jones and Bartlett Publishers , 2011
Buku Teks