“THE EFFECT OF COLLABORATIVE WRITING TECHNIQUE ON STUDENTS WRITING ABILITY AT THE EIGHTH GRADE OF SMP NEGERI 8 PEMATANGSIANTAR”. Bilingual : Jurnal Pendidikan Bahasa Inggris 1, no. 1 (April 28, 2019): 26–31. Accessed April 24, 2025. https://jurnal.usi.ac.id/index.php/jbl/article/view/972.