Austria : The Opec Fund For International Development, 2006,
Majalah, Jurnal, Buletin
Ratu Helda Purnamasari, author
Universitas Indonesia, 2002
UI - Tesis Membership
Sri Hartini, author
Fakultas Teknik Universitas Indonesia, 1999
UI - Tesis Membership
Erfa Meifany, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2006
UI - Skripsi Membership
Depok : FE-UI, 2006,
Majalah, Jurnal, Buletin