Stanić, Milorad, Veselin Buncić, and Gordana Mijailović,. “THE „SCHOOL IN NATURE“ FROM THE ASPECT OF SCHULTZ’S THEORY”. KNOWLEDGE - International Journal 57, no. 2 (March 31, 2023): 279–285. Accessed November 27, 2024. http://ikm.mk/ojs/index.php/kij/article/view/6000.