Läänemets U, Kalamees-Ruubel K, Kiilu K, Sepp A. CURRICULUM DEVELOPMENT CONSIDERING FORMAL, NON-FORMAL AND INFORMAL EDUCATION. SIE [Internet]. 2018 May 25 [cited 2026 Apr. 27];2:286-95. Available from: https://archive-journals.rtu.lv/sie/article/view/1737