Mahmud, et al. “INVESTIGATING PLURILINGUAL AND PLURICULTURAL COMPETENCE ​​IN FOREIGN LANGUAGE TEACHING AT ISLAMIC BOARDING SCHOOL”. Cirebon International Conference on Education and Economics Proceeding, vol. 1, no. 1, July 2024, pp. 341-50, https://ejournalugj.com/index.php/cicee/article/view/9384.