Bank Indonesia
G. Kolff,
Buku Teks SO
edited by Ross H. McLeod
Institute of Southeast Asian Studies, 1995
Buku Teks SO
Sondang Dwi Julianti
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2022
UI - Skripsi Membership
Anton Hermanto Gunawan
Gramedia Pustaka Utama, 1991
Buku Teks
Anwar Nasution, editor
Rotledge, 2015
Buku Teks