ABSTRACT ISMAIL, 2017. The Study of English Language Acquisition and Madurese Language Maintenance of Male Madurese Students at Fifth Grade Tarbiyatul Muallimin Al-Islamiyah Al-Amien Prenduan Islamic Boarding school Sumenep. Thesis, English Teaching Learning Program (TBI), Tarbiyah Department, The State of Islamic Collage (STAIN) Pamekasan. Advisor: Afifah Raihany, M.Pd. Key Words: Lang…