relevant phase interview vocational network categorized teacher functional there conducting appropriate study number developing education observation then state designing lecturer show their should binjai also final analyzing six english art novita ha invitation through gathering based thesi developed schedule some result keyword registration descriptive text student school wa syllabu negeri need validated collecting validating medan research book program letter expert computer data development after product engineering 2133121022 design dian instrument grade new conducted gotten SMK writing develop university memo distributed ABSTRACT 2017 aim mean revising not language faculty material done consisting questionnaire major high had information