1. Symantec. Internet security threat report. 2016. https://www.symantec.com/security-center/threat-report
2. Fonseca J, Vieira M, Madeira H. Evaluation of web security mechanisms using vulnerability & attack injection. IEEE Trans Depend Secure Comput, 2014, 11: 440–453
3. Imperva. Web application attack report. 2015. https://www.imperva.com/docs/HII Web Application Attack Report Ed6.pdf
4. WhiteHat. Web application security statistic report. 2016. https://info.whitehatsec.com/rs/675-YBI-674/images/WH-2016-Stats-Report-FINAL.pdf
5. Lawal M, Sultan A B M, Shakiru A O. Systematic literature review on SQL injection attack. Int J Soft Comput, 2016, 11: 26–35