Saragih, Erina N.
Universitas Indonesia, 2003
UI - Skripsi (Membership)
Rengganis Suseno
[, 2016]
UI - Tesis (Membership)
Yvonne Ivon
Universitas Indonesia, 2014
UI - Skripsi (Membership)
Panjaitan, Alda Mayo Panajam
Universitas Indonesia, 2012
UI - Skripsi (Open)
Hally, M. Bernard Dette
Elsevier, 2009
Buku Teks