The Impact of the Fruitful Tree Strategy on Developing Systemic Thinking Skills Among Fifth Grade Primary School Students in Science. College of Basic Education Research Journal, [S. l.], v. 20, n. 4, p. 159–175, 2024. DOI: 10.33899/berj.2024.185704. Disponível em: https://berj.uomosul.edu.iq/index.php/berj/article/view/37919. Acesso em: 19 oct. 2026.