Utomo, S. (2021) “Analisis Yuridis Jual-Beli Online Buku Elektronik (E-Book) (E-Commerce) Dari Persepektif Hukum Perdata Indonesia”, MASILE, 2(2). Available at: https://jurnal.ipeba.ac.id/index.php/masile/article/view/36 (Accessed: 27 October 2026).