Andrade, Tonio (2016), The Gunpowder Age: China, Military Innovation, and the Rise of the West in World History, Princeton University Press, ISBN 978-0-691-13597-7.

QUINTELA, ANTÓNIO DE CARVALHO. A fábrica da Pólvora de Barcarena e os seus Sistemas Hidráulicos. OEIRAS. 1995.

FELTRE, RICARDO. Química 3 – Química Orgânica. Moderna. 6 ed. 2004.

The deadly irony of gunpowder - Eric Rosado https://www.youtube.com/watch?time_continue=1&v=mqHVRgCkCDE

GUNPOWDER http://military.wikia.com/wiki/Gunpowder

Ancient Chinese Gunpowder. http://www.ancientchinalife.com/ancient-chinese-gunpowder.html

Pólvora. https://www.portalsaofrancisco.com.br/curiosidades/polvora

See Through Model Rocket Engine - FULL ENGINE in Slow Motion 4K https://www.youtube.com/watch?v=_xvVJQSGHts

Burning GunPowder in 4K Slow Motion https://www.youtube.com/watch?v=wWVD6Ov59T0

Cannon loading in the eighteenth century https://www.youtube.com/watch?v=Eqs-iVsCyDI

Black Powder vs Smokeless Powder Chapter 2: more education on the Old West! https://www.youtube.com/watch?v=pmP53hypbv4