R. Musyarofah, A. I. Ramadhan Hamid, and A. Halim, “Grammarly As a Digital Learning Tool: Supporting Self-Directed Learning in Academic Writing at Universitas Muhammadiyah Kalimantan Timur”, borju. borneo. educational. j., vol. 7, no. 2, pp. 355–366, Jul. 2025.