Hadi Wibowo, Grace, and Saefurrohman Saefurrohman. “KOREAN LESSON LEARNING (HANGEUL) APPLICATION BASED ON ANDROID”. Information Technology and Telematics 8, no. 2 (July 20, 2019). Accessed November 23, 2024. https://www.unisbank.ac.id/ojs/index.php/fti3/article/view/6614.