Sprindžiūnas, Andrius. “Connections Between 10-12 Form Secondary School Students’ Tolerance and Their Relation to Their Activity”. Acta Paedagogica Vilnensia 9 (December 20, 2002): 173–181. Accessed May 3, 2024. https://www.journals.vu.lt/acta-paedagogica-vilnensia/article/view/9552.