1. 2019. Software Developers : Occupational Outlook. https://www.bls.gov/ooh/ computer-and-information-technology/software-developers.htm#tab-6 2019. Software Developers : Occupational Outlook. https://www.bls.gov/ooh/ computer-and-information-technology/software-developers.htm#tab-6
2. Eric E. Allen Ryan Culpepper Jon Rafkind and Sukyoung Ryu. 2008. Growing a Syntax. Eric E. Allen Ryan Culpepper Jon Rafkind and Sukyoung Ryu. 2008. Growing a Syntax.
3. 37 Million Compilations
4. Sherry Andrews Cara McFeggan and Cynthia Patterson. 1998. Problems Students Encounter during Math Instruction in Mixed-Ability Classrooms. (1998). Sherry Andrews Cara McFeggan and Cynthia Patterson. 1998. Problems Students Encounter during Math Instruction in Mixed-Ability Classrooms. (1998).
5. Teaching subsets of Pascal