Rizal R, Rusdiana D, Setiawan W, Siahaan P. Development of a Problem-Based Learning Management System-Supported Smartphone (PBLMS3) Application Using the ADDIE Model to Improve Digital Literacy. IJLTER [Internet]. 2021 Nov. 30 [cited 2026 Apr. 19];20(11):115-31. Available from: http://www.ijlter.net/index.php/ijlter/article/view/723