Neukrug, Edward S., author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Faiver, Christopher, author
Thomson, 2004
Buku Teks
Thomas, Edwin J., author
Sage, 1984
Buku Teks
Loughary, John W., author
McGraw-Hill, 1979
Buku Teks
Melani Bernadette, author
2018
UI - Skripsi (Membership)