DeCoursey, Rusell Myles
McGraw-Hill , 1968
Buku Teks
Silverthorn, Dee Unglaub
Pearson, Benjamin Cummings, 2010
Buku Teks
Silverthorn, Dee Unglaub
Pearson, 2019
Buku Teks
Patton, Kevin T.
Elsevier, 2010
Buku Referensi
Marieb, Elaine Nicpon, 1936-
Benjamin, 1998
Buku Teks SO