The 2008 World Book Year Book: The Annual Supplement to the World Book Encyclopedia: A Review of the Events of 2007. Chicago: World Book, 2008. Print. (Used to help get a better background of the Tang Dynasty)
Expert, Kallie Szczepanski Asian History. "How China Invented Gunpowder." About.com Education. N.p.,07 Oct. 2016. Web. 02 Mar. 2017. (The four great inventions of China)
Helmenstine, Ph.D. Anne Marie. "Learn How Gunpowder Works." ThoughtCo. N.p., n.d. Web. 06 Mar.2017. (Basics about gunpowder)
Kelly, Jack. Gunpowder: A History of the Explosive That Changed the World. London: Atlantic, 2004. Print. (Gunpowder ingredients)
Hucker, Charles O. China's Imperial Past: An Introduction to Chinese History and Culture. Stanford, CA: Stanford UP, 2008. Print. (China before gunpowder)
Needham, Joseph. Science and Civilization in China. Cambridge: U, 1959. Print. (Information about the Tang Dynasty)
Temple, Robert K. G. The Genius of China: 3,000 Years of Science, Discovery & Invention. London: AndreÌ Deutsch, 2013. Print. (Information of the fire-lance)
Expert, Kallie Szczepanski Asian History. "How China Invented Gunpowder." About.com Education. N.p.,07 Oct. 2016. Web. 02 Mar. 2017. (The four great inventions of China)
Helmenstine, Ph.D. Anne Marie. "Learn How Gunpowder Works." ThoughtCo. N.p., n.d. Web. 06 Mar.2017. (Basics about gunpowder)
Kelly, Jack. Gunpowder: A History of the Explosive That Changed the World. London: Atlantic, 2004. Print. (Gunpowder ingredients)
Hucker, Charles O. China's Imperial Past: An Introduction to Chinese History and Culture. Stanford, CA: Stanford UP, 2008. Print. (China before gunpowder)
Needham, Joseph. Science and Civilization in China. Cambridge: U, 1959. Print. (Information about the Tang Dynasty)
Temple, Robert K. G. The Genius of China: 3,000 Years of Science, Discovery & Invention. London: AndreÌ Deutsch, 2013. Print. (Information of the fire-lance)