Sulistiyo, Urip, Saharudin Saharudin, Yanto Yanto, Mohamad Muspawi, Rudi Hartono, and Dita Adawiyah. 2025. “Self-Directed Learning Modules for Postgraduate Academic Writing: A Systematic Review (2020–2025) and Proposed Educational Framework”. PPSDP International Journal of Education 4 (2):1097-1117. https://doi.org/10.59175/pijed.v4i2.863.