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. JIMB [Internet]. 9 Januari 2023 [dikutip 3 April 2026];11(1):1-11. Tersedia pada: https://journals.ubmg.ac.id/index.php/JIMB/article/view/1117