[1]
Heriyanto Nurcahyo, Sukarno, and Hairus Salikin, “The Use of Engghi-Bhunten Speaking Levels by Madurese Students in Al-Azhar Islamic Boarding School: A Sociolinguistic Study”, RETORIKA: Jurnal Ilmu Bahasa, vol. 9, no. 2, pp. 144-156, Sep. 2023.