PELATIHAN CREATIVE COPYWRITING BAGI SISWA SMA NEGERI 11 PEKANBARU UNTUK MENINGKATKAN KOMPETENSI PEMASARAN DI ERA DIGITAL. J-COSCIS : Journal of Computer Science Community Service, [S. l.], v. 5, n. 2, p. 188–197, 2025. DOI: 10.31849/f8w5pt11. Disponível em: http://journal.unilak.ac.id/index.php/jcoscis/article/view/26125. Acesso em: 4 jun. 2026.