Parker, George E., author
Handbook of model letters & memos for engieners,scientists and technical professionals
Prentice-Hall, 1988
 Buku Referensi
Manullang, Herlina P., author
Aspek-aspek perdata dalam perjanjian pembukaan letter of credit
Fakultas Hukum Universitas Indonesia, 1983
 UI - Skripsi (Membership)
Indria Gunawan Leman, author
Wanprestasi dalam perjanjian jual beli dengan letter of credit.
Fakultas Hukum Universitas Indonesia, 1995
 UI - Skripsi (Membership)
Lee, Jong-hee, author
Yuhaksaengeul wihan Hangugo gel ssegi ui silje = Korean writing (for international students) Physical
Hawoo, 2010
 Buku Referensi
Rini Satriani, author
Risiko, Letter of Credit, Ekspor Non-Migas: Peran Perbankan dalam Mempengaruhi Pola Ekspor Non-Migas Indonesia = Risks, Letters of Credit, Non-Oil and Gas Exports: The Role of Banks in Indonesia's Non-Oil and Gas Export Patterns
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2020
 UI - Tesis (Membership)