1. A brief history of drills and drilling;Gwinnett;BEADS: J. Soc. Bead Res.,1998
2. A history of technology, volume i: From early times to fall of ancient empires;Goggin,1954
3. The Handbook of Groundwater Engineering;Delleur,2006
4. Percussion and down-the-hole hammer drilling: yesterday and today;Treadway;Water Well J.,1997
5. Drilling in Extreme Environments: Penetration and Sampling on Earth and Other Planets;Bar-Cohen,2009