UTOMO, Singgih. Analisis Yuridis Jual-Beli Online Buku Elektronik (E-Book) (E-Commerce) Dari Persepektif Hukum Perdata Indonesia. MASILE, [S. l.], v. 2, n. 2, 2021. DOI: 10.1213/masile.v2i2.36. Disponível em: https://jurnal.ipeba.ac.id/index.php/masile/article/view/36. Acesso em: 10 sep. 2026.