A’yunin, Rina. “Teachers’ Voice Of Using Crossword Puzzle Games To Improve Students’ Vocabulary: (:), Teachers’ Voice, Crossword Puzzle Games, Vocabulary”. RETAIN : Journal of Research in English Language Teaching, vol. 11, no. 02, July 2023, pp. 8-14, https://ejournal.unesa.ac.id/index.php/retain/article/view/54278.