“AN ANALYSIS OF MADURESE SPEECH LEVELS BY SANTRI OF ROUDLOTUT THOLIBIN ISLAMIC BOARDING SCHOOL KADEMANGAN KOTA PROBOLINGGO”. Literasi: Jurnal Ilmiah Kajian Ilmu Humaniora, vol. 4, no. 2, Jan. 2026, pp. 80-89, https://doi.org/10.51747/s0c52a58.