Titis Endarwidiarti, author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Skripsi (Membership)
Peale, Norman Vincent, 1898-1993, author
Binarupa Aksara, 1996
Buku Teks
Bono, Edward de, author
Erlangga, 1988
Buku Teks
Maryam Rudyanto, author
Fakultas Psikologi Universitas Indonesia, 1989
UI - Tesis (Membership)
Tim Wesfix; Adinto F. Susanto, editor
Grasindo, 2016
Buku Teks