Siswasusila, Pancahadi. “Implementation of Cooperative Learning Through Crossword Puzzle Strategy to Increase the Motivation of Grade 5 Students: Implementasi Cooperative Learning Melalui Strategi Crossword Puzzle Untuk Meningkatkan Motivasi Siswa Kelas 5”. Madrosatuna: Journal of Islamic Elementary School 1, no. 2 (October 30, 2017): 89–104. Accessed August 23, 2025. https://madrosatuna.umsida.ac.id/index.php/Madrosatuna/article/view/1540.