The fascinating history of toilet paper with backing vocals provided by a very small human.
Reference are below:
Greenblatt, M. (2006). Han Wu Di and Ancient China. New York: Marshall Cavendish Benchmark.
Krebs, R. (2004). Groundbreaking Scientific Experiments, Inventions, and Discoveries of the of the Middle Ages and the Renaissance. USA: Green Wood Press.
Smyth, R. (2012). Bum Fodder: An Absorbing History of Toilet Paper. London: Souvenir Press.
Thompson, A. (2010). What Did We Use Before Toilet Paper?: 200 Curious Questions and Intriguing Answers. Ulysses Press.