1. II. Fuentes secundarias
2. Arango Jaramillo, Mario y Jorge Child Vélez. Narcotráfico: imperio de la cocaína. México: Edivisión, 1987.
3. Ashley, Richard. Cocaine. Its History, Uses and Effects. Nueva York: Warner Books, 1975.
4. Bosman, Hans Harold. The History of the Nederlandsche Cocaïne Fabriek and its Successors as Manufacturers of Narcotic Drugs, Analyzed from an International Perspective. Launceston: Foot & Playsted Pty, 2012.
5. Carter, Wiliam y Mauricio Mamani. Coca en Bolivia. La Paz: Juventud, 1986.