Etzioni, Amitai, author
Collier Macmillan, 1988
Buku Teks
Myers, Danny, author
Taylor and Francis, 2009
Buku Teks
Styles, Margretta M., foreword
Mosby , 1982
Buku Teks
Humaira Fathma Gardilla, author
Fakultas Psikologi Universitas Indonesia, 2015
UI - Skripsi (Membership)
International forums of Sao Paulo and Geneva , 1956
Buku Teks