APA Citation

Lewis, O. Classroom interction and its relations to the effectiveness of english teaching and ... in SMA 9 Yogyakarta 1991/1992. Yayasan Obor Indonesia.

Chicago Style Citation

Lewis, Oscar. Classroom Interction and Its Relations to the Effectiveness of English Teaching and ... in SMA 9 Yogyakarta 1991/1992. Yayasan Obor Indonesia.

MLA Citation

Lewis, Oscar. Classroom Interction and Its Relations to the Effectiveness of English Teaching and ... in SMA 9 Yogyakarta 1991/1992. Yayasan Obor Indonesia.

Warning: These citations may not always be 100% accurate.