MARZUKI, A. “The Implementation of Stay and Stray Technique in Teaching Writing Hortatory Exposition Text to Eleventh Graders of SMA Unggulan Amanatul Ummah Surabaya”. RETAIN : Journal of Research in English Language Teaching, Vol. 2, no. 3, Aug. 2014, https://ejournal.unesa.ac.id/index.php/retain/article/view/9026.