UTAMI , Rina Aprilia. Whatsapp messenger as mobile learning technique to the students’ writing skill in caption at SMAN 4 Bangkalan . SELL (Scope of English Language Teaching, Linguistics, and Literature) Journal, [S. l.], v. 4, n. 1, p. 11–20, 2020. Disponível em: https://www.publikasi.stkippgri-bkl.ac.id/index.php/SL/article/view/212. Acesso em: 17 may. 2025.