Saffell, David C.
McGraw-Hill, 1997
Buku Teks
Saltzstein, Alan L., author
Thompson, 2003
Buku Teks
Saltzstein, Alan L., author
Wadsworth/Thomson learning, 2003
Buku Teks
Russell Sage Publication, 2001
Buku Teks
Muhammad Syaeful Mujab, author
2018
UI - Skripsi (Membership)