Sembiring, Ejasa, author
1994
UI - Tesis (Membership)
Sembiring, Ejasa, author
Fakultas Psikologi Universitas Indonesia, 1994
UI - Tesis (Membership)
Sembiring, Ejasa, author
1994
UI - Tesis (Membership)
Endang Sri Hastuti, author
1998
UI - Tesis (Membership)
Sutadji, author
Fakultas Psikologi Universitas Indonesia, 1993
UI - Tesis (Membership)