SULAIMAN, A. H. . the The Effectiveness of the “Snowball” Strategy Based on Active Learning In Acquiring And Retaining Grammatical Concepts: For Eighth Grade Students Who Are Not Native Speakers. Koya University Journal of Humanities and Social Sciences, [S. l.], v. 8, n. 1, p. 285-295, 2025. DOI: 10.14500/kujhss.v8n1y2025.pp285-295. Disponível em: https://jhss.koyauniversity.org/index.php/jhss/article/view/1243. Acesso em: 19 apr. 2025.