SHIVGUNDE, R. B.; GUPTA, B. L. Quality Circle-An Approach to Solve Polytechnic Problems. Journal of Engineering Education Transformations, [S. l.], p. 25–30, 1996. DOI: 10.16920/jeet/1996/v10i2/114858. Disponível em: https://www.journaleet.in/index.php/jeet/article/view/942. Acesso em: 31 jan. 2026.