b'\n_START_ARTICLE_\nStephen D. Krashen\n_START_SECTION_\nBacaan seterusnya\n_START_PARAGRAPH_\nKrashen, Stephen (1982). Principles and practice in second language learning and acquisition. Oxford: Pergamon._NEWLINE_Krashen, Stephen D. (1997). Foreign language education the easy way. California: Language Education Associates.'