Artikel Jurnal
Fina Triani, author
RajaGrafindo Persada, 2016
Buku Teks
Rijnsburger, W., author
Rabobank International Group, 1966
Buku Teks
Aurora Maria Sarah, author
Universitas Indonesia, 2018
UI - Skripsi (Membership)
Nila Syawitri, author
Universitas Indonesia, 2006
UI - Tesis (Membership)