DEWI R A. THE IMPLEMENTATION OF USING “PEN PAL” IN TEACHING WRITING OF DESCRIPTIVE TEXTS TO THE SEVENTH GRADERS OF AL-FALAH JUNIOR HIGH SCHOOL. RT [Internet]. 15Aug.2013 [cited 19May2024];1(3). Available from: https://ejournal.unesa.ac.id/index.php/retain/article/view/3792