Popa, N.L. și Stan, L. (2013) „Investigating Learning Space with Photography in Early Childhood Education: A Participatory Research Approach”, Revista de Cercetare si Interventie Sociala, 42, pp. 248–261. Disponibil la: https://www.rcis.ro/journal/article/view/1114-investigating-learning-space-with-photography-in-early (Data accesării: 7 noiembrie 2026).