Markus, John, 1911-
McGraw-Hill, 1982
Buku Teks
Markus, John, 1911-
McGraw-Hill, 1982
Buku Teks
Markus, John, 1911-
McGraw-Hill, 1994
Buku Referensi
Shugar, Gershon J.
McGraw-Hill, 1990
Buku Referensi
Garrison, Catherine
Reading, Mass Addison-Wesley Publishing Co , 1989
Buku Teks SO