Reynaldi, K. . “Cultural Content Analysis of English Textbook Entitled When English Rings A Bell for Seventh Grade”. Proceeding of International Conference on Language Pedagogy (ICOLP), vol. 2, no. 1, Dec. 2022, pp. 157-63, https://proceeding-icolp.fbs.unp.ac.id/index.php/icolp/article/view/84.