Andi Irawan, author
Fakultas Psikologi Universitas Indonesia, 2009
UI - Tesis (Open)
Niles, Henry E., author
John Wiley & Sons, 1942
Buku Teks
Kusyono Suryo, author
Fakultas Teknik Universitas Indonesia, 2013
UI - Skripsi (Membership)
Ladew, Donald P., suthor
Pustaka Tangga, 2003
Buku Teks
Tobing, Josephine, author
Erlangga, 2011
Buku Teks