Özçelik, Alev, and Selçuk Arik. “ATTITUDES OF SECONDARY SCHOOL STUDENTS TOWARDS SUSTAINABLE DEVELOPMENT”. International Online Journal of Education and Teaching 9, no. 4 (October 1, 2022): 1987–2002. Accessed January 11, 2026. https://www.iojet.org/index.php/IOJET/article/view/1762.