ABSTRACT Rosidah, 2012, The Influence of Vocabulary Mastery on Students Reading Comprehension At The Second Grade ofMTs.NurusSalafiyahSejatiCamplongSampang, Thesis, English Teaching Learning Program (PBI), The State of Islamic College (STAIN). Advisor: Drs. Mosleh Habibullah. M.Pd. Key Word: Vocabulary Mastery, Reading Comprehension. Reading is one of the important ways to learn English lan…