* Kelly, Jack (2004). ''Gunpowder: Alchemy, Bombards, & Pyrotechnics''. ISBN 0-465-03718-6 — Sejarah ledakan yang mengubah dunia sejak Vasco da Gama hingga E.I. DuPont.
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== Pranala luar ==
{{commons|Vasco da Gama}}
* [http://www.prominentpeople.co.za/people/35.php Vasco da Gama] dalam Prominent People
* {{en}} [http://www.fordham.edu/halsall/mod/1497degama.html da Gama's ''Round Africa to India'']
* {{en}} [http://www.ucalgary.ca/applied_history/tutor/eurvoya/vasco.html da Gama web tutorial] with animated maps
* {{en}} [http://sify.com/itihaas/fullstory.php?id=13233617 Deskripsi singkat] perjalanan da Gama