Ashford, Jose B.
Cengage Learning, 2018
Buku Teks
Maya Eka Sari Prawiro
2016
UI - Tesis (Membership)
Zastrow, Charles
Nelson-Hall Publishers, 1989
Buku Teks
Zastrow, Charles
Cengage Learning, 2016
Buku Teks
Germain, Carel Bailey
Columbia Universary Press, 1991
Buku Teks