Qonitat, Ihda Imroatun, Elvanisa Ayu Muhsina, and Shofwatul Uyun. 2013. “Decision Support System for Major Determination in Madrasah Aliyah”. IJID (International Journal on Informatics for Development) 2 (2):26-31. https://doi.org/10.14421/ijid.2013.02205.