AN ANALYSIS OF MADURESE SPEECH LEVELS BY SANTRI OF ROUDLOTUT THOLIBIN ISLAMIC BOARDING SCHOOL KADEMANGAN KOTA PROBOLINGGO. LTR [Internet]. 2026 Jan. 13 [cited 2026 Jul. 3];4(2):80-9. Available from: https://e-journal.upm.ac.id/index.php/literasi/article/view/155