Purnama, Santia Indah, Marlina Marlina, and Desyandri Desyandri. “Analisis Soal Hots Pada Tema Ekosistem Di Sekolah Dasar”. Jurnal Pendidikan Tambusai 5, no. 1 (June 22, 2021): 2070–2075. Accessed January 26, 2025. http://jptam.org/index.php/jptam/article/view/1240.