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Endang Sulistiyani, Rizqi Putri Nourma Budiarti, Muhammad Aidir Rafly. Analysis of Online Learning Readiness Level at Universitas Nahdlatul Ulama Surabaya (UNUSA). IJIES [Internet]. 2021 Jan. 31 [cited 2025 Apr. 4];5(1):23-34. Available from: https://ijies.telkomuniversity.ac.id/index.php/IJIES/article/view/62