Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1962
UI - Skripsi (Membership)
Chioma Peace Nwosu, author
Bank Indonesia Insitute, 2019
Artikel Jurnal
Chioma Peace Nwosu, author
Bank Indonesia Insitute, 2019
Artikel Jurnal
Warner, Sam Bass
University of Pennsylvania Press, 1968
Buku Teks
Duangkanok Tanangteerapong, author
2016
Artikel Jurnal