DeCoursey, Rusell Myles, author
McGraw-Hill, 1980
Buku Teks
DeCoursey, Rusell Myles, author
McGraw-Hill , 1968
Buku Teks
Shier, David, author
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Buku Teks
Silverthorn, Dee Unglaub, author
Pearson, 2019
Buku Teks
Silverthorn, Dee Unglaub, author
Pearson, Benjamin Cummings, 2010
Buku Teks