Sedgewick, Robert and Wayne, Kevin Daniel (2011) Algorithms. 4th ed. Upper Saddle River, NJ: Addison-Wesley. Available at: https://go.oreilly.com/university-college-london/library/view/-/9780132762564/?ar.
Thomas Cormen, Charles Leisersen, Ronald Rivest, Clifford Stein (2009) Introduction to algorithms. 3rd ed. Cambridge, Mass: MIT Press. Available at: https://ebookcentral.proquest.com/lib/ucl/detail.action?docID=3339142.