Paputungan F. Business Effectiveness of Online Reading Books (E-Books) in the Digital Era for Bina Mandiri University Gorontalo Students: Keefektifan Bisnis Buku Bacaan Online ( E-Book) Era Digital untuk Mahasiswa Universitas Bina Mandiri Gorontalo. JEaC [Internet]. 2023Jan.9 [cited 2024Jul.4];3(1):41-6. Available from: https://journals.ubmg.ac.id/index.php/JEaC/article/view/1118