1. S.Ulubeyli, V.Arslan & S.Kivrak (2015) A semiotic analysis of cartoons about occupational health and safety issues in the construction workplace, Construction Management and Economics, 33:5-6, 467–483, DOI: https://doi.org/10.1080/01446193.2015.1024270
2. S. Vokey (2000) Inspiration for insurrection or harmless humour? Class and Politics in the Editorial Cartoons of Three Toronto Newspapers During the Early 1930s, Labour/Le Travailleur Volume 45, 2000, p. 141–170
3. A. Ashfaq, (2014) The Representation Of The United States In Mainstream English Newspapers Of Pakistan: An Analysis Of Political Cartoons (1991–2013). PhD thesis, Universiti Sains Malaysia..
4. DeSousa, M. A., & Medhurst, M. J. (1982). Political Cartoons and American Culture: Significant Symbols of Campaign 1980. 8 (1), 84–97. Retrieved from https://repository.upenn.edu/svc/vol8/iss1/9
5. Yi, Tho Xin, (2019). Malaysia’s artists pledge to continue pushing boundaries of political expression. Retrieved from https://www.channelnewsasia.com/asia/malaysia-artists-freedom-political-expression-censorship-874966