Anon. 2016. C Programming Language. Createspace Independent Publishing Platform.
Eckel, Bruce. 2000. Thinking in C++. 2nd ed. Upper Saddle River, N.J.: Prentice Hall.
Harbison, Samuel P., and Guy L. Steele. 2002. C, a Reference Manual. 5th ed. Upper Saddle River, N.J.: Prentice Hall.
Lewis, John, William Loftus, and Allan Smith. 2018. Java Software Solutions: Foundations of Program Design. Ninth edition, global edition. Harlow, Essex: Pearson Education Limited.
Simmons, Robert. n.d. Hardcore Java. 1st ed. Sebastopol, CA: O’Reilly.