Brown, Alfred E.
McGraw-Hill, 2012
Buku Teks
Brown, Alfred
Mc Graww Hill, 2012
Buku Teks
Rohen, Johannes W.
Wolters Kluwer, 2016
Buku Referensi
Nora Hebert, Rith E. Heisler, Jett Chinn, Olga Malakhova
Pearson, 2015
Buku Referensi
Harley, John P.
McGraw-Hill, 2000
Buku Teks