Lulu Lucyana
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2003
UI - Skripsi (Membership)
Marita
2007
UI - Tesis (Membership)
Carson, A. Brinton
McGraw-Hill, 1965
Buku Teks
Chellis, Robert D
McGraw-Hill Company, 1961
Buku Teks
Irma Nursubchiana Indah Iskandar
2008
UI - Skripsi (Open)