CHANG, Y.-F.; YEH, C.-C. On demand-side sources of service innovation ideas. Journal of Economic and Social Thought, [S. l.], v. 4, n. 3, p. 329–334, 2017. DOI: 10.1453/jest.v4i3.1417. Disponível em: https://journals.econsciences.com/index.php/JEST/article/view/1417. Acesso em: 19 sep. 2024.