ISROFANI, N. “THE IMPLEMENTATION OF PROJECT WORK BY ENCOURAGING STUDENTS TO CREATE A SIMILAR GO POP-UP BOOK AS STUDENTS’ PROJECT TO TEACH WRITING OF A REPORT TEXT TO THE ELEVENTH GRADERS OF SMAN 1 KERTOSONO”. RETAIN : Journal of Research in English Language Teaching, Vol. 3, no. 2, May 2015, https://ejournal.unesa.ac.id/index.php/retain/article/view/11631.