Cambridge: Cambridge University Press. pp. 100–103. ISBN 0-521-79158-8. ↑ Needham, Volume 5, Part 7, 510. ↑ Frank H. Winter, "The `Boun Bang Fai' Rockets of Thailand and Laos:", in Lloyd H. Cornett, Jr., ed., History of Rocketry and Astronautics - Proceedings of the Twentieth and Twenty-First History Symposia of the International Academy of Astronautics, AAS History Series, Vol. 15 (Univelt Inc.: San Diego, 1993), pp. 3-24. ↑ "Rockets appear in Arab literature in 1258 A.D., describing Mongol invaders' use of them on February 15 to capture the city of Baghdad."