Rahutomo, F.; Ari Roshinta, T.; Rohadi, E.; Siradjuddin, I.; Ariyanto, R.; Setiawan, A.; Adhisuwignjo, S. Open Problems in Indonesian Automatic Essay Scoring System. IJET 2018, 7 (4.44), 156-160. https://doi.org/10.14419/ijet.v7i4.44.26974.