Burkšaitienė, Nijolė, and Jolita Šliogerienė. “VALIDATION OF LEARNING OUTCOMES GAINED OUTSIDE ACADEMIA: A LITHUANIAN CASE OF PORTFOLIO TRAINING”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 2 (May 26, 2017): 397–409. Accessed March 11, 2026. https://archive-journals.rtu.lv/sie/article/view/1541.