Ratna Amijanti, author
Fakultas Psikologi Universitas Indonesia, 2000
UI - Tesis Membership
Jakarta UI 1981,
Buku Teks
Sri Wulan, author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Tesis Membership
by A. F. Gustafson [and others]
Comstock Publishing Associates, 1961
Buku Teks
Schmitz, Carl August
Frankfurt a.M. Akademische verlagsgesellschaft 1963
Buku Teks