El Salvador agreements
[publisher not identified], [date of publication not identified]
 Buku Teks
El salvador agreements: the path to peace
United Nations, [date of publication not identified]
 Buku Teks SO
The origins of the cold war in Asia
edited by Yonosuke Nagai and Akira Iriye
University of Tokyo Press, 1977
 Buku Teks SO
Wallich, Henry C.
Public finance in a developing country : El Salvador - a case study
Harvard University Press, 1951
 Buku Teks
Kebry Poetra Krisaff
Konsep-Konsep Terkait Kesenjangan Digital, Bitcoin, dan El Salvador: Tinjauan Literatur tentang Kesenjangan Digital terhadap Kebijakan Bitcoin di El Salvador = Digital Divide Related-concepts, Bitcoin, and El Salvador: Literature Review on Digital Divide Towards Bitcoin Policy in El Salvador
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2023
 UI - Makalah dan Kertas Kerja