BPPT, 1999
Buku Referensi
Amelia Zulfitri, author
Fakultas Hukum Universitas Indonesia, 2016
UI - Tesis (Membership)
Juliana, author
Universitas Indonesia, 2012
UI - Tesis (Membership)
Supriharyono, author
Gramedia Pustaka Utama, 2000
Buku Teks
Novianto, author
Universitas Indonesia, 2003
UI - Tesis (Membership)