ABSTRACT Augie Redha Pradhana, 2020, Indonesian-English Code Mixing Written by An Indonesian Food Vlogger, MGDALENAF ,in Her Instagram Captions ,Thesis,English Teaching Learning Program (TBI), Tarbiyah Faculty, State Islamic Institute Of Madura. Advisor: Wahab Syakhirul Alim, M.Pd. Key words: Sociolinguistic, Code Mixing, Interference, Lexical Meaning. In learning English, there are many …