Nofriza, Yulia, and Zelhendri Zen. “Analysis Validation and Practicality of Crossword Puzzle Learning Media in Science Subjects for Class VII in Junior High Schools ”. Jurnal Penelitian Pendidikan IPA 10, no. 6 (June 25, 2024): 2891–2897. Accessed July 1, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/7489.