Kahveci, Gökhan, and Zülfü Demirtaş. “Cleanliness and Hygiene Perceptions of Primary School Students in 6th, 7th, and 8th Gradess”. Pegem Journal of Education and Instruction 2, no. 2 (June 1, 2016): 51–61. Accessed August 2, 2025. https://pegegog.net/index.php/pegegog/article/view/C2S2M5.