Bjerknes A-L, Skalstad I, Räpple-Freudenreich S. Conceptual Playworld as a Method of Facilitating Learning Beyond Subject Matter in Elementary School. UP [Internett]. 30. desember 2023 [sitert 21. mai 2024];17(2):53-76. Tilgjengelig på: https://utdanningogpraksis.no/index.php/up/article/view/5183