Wenar, Charles, 1922-
McGraw-Hill , 1994
Buku Teks
Wenar, Charles, 1922-
McGraw-Hill, 2000
Buku Teks
Shafira Chairunnisa
2018
UI - Skripsi (Membership)
Phares, Vicky
John Wiley & Sons, 2008
Buku Teks
edited by Michael Lewis and Suzanne M. Miller
Plenum Press, 1990
Buku Referensi