(en)Harvey, Brian; Smid, Henk H. F.; Pirard, Théo (2010). Emerging Space Powers: The New Space Programs of Asia, the Middle East and South-America. Springer-Praxis books in Space Exploration. Berlin; New York; Chichester, UK: Springer; Praxis Publishing. str. 254, 277-282, 288. i 293. DOI:10.1007/978-1-4419-0874-2. ISBN9781441908735. OCLC401159925.
(en)Harding, Robert C. (2013). Space Policy in Developing Countries: The Search for Security and Development on the Final Frontier. Space Power and Politics. Milton Park, Abingdon, Oxfordshire; New York: Routledge. str. 131. ISBN9780415538459. OCLC773023787.
(en)Harvey, Brian; Smid, Henk H. F.; Pirard, Théo (2010). Emerging Space Powers: The New Space Programs of Asia, the Middle East and South-America. Springer-Praxis books in Space Exploration. Berlin; New York; Chichester, UK: Springer; Praxis Publishing. str. 254, 277-282, 288. i 293. DOI:10.1007/978-1-4419-0874-2. ISBN9781441908735. OCLC401159925.