Gelūnas, A. “MULTILINGUALISM AS A PREREQUISITE OF INTERCULTURAL EDUCATION: FROM UNESCO PROGRAMMES TO SUSTAINABLE DEVELOPMENT CHALLENGES OF MODERN STATES”. Sustainable Multilingualism / Darnioji Daugiakalbystė, no. 6, Mar. 2023, pp. 16-23, https://ejournals.vdu.lt/index.php/SM/article/view/4476.