Analisis pengaruh banyak kata dan rasio panjang jawaban terhadap keakuratan penilaian pada sistem penilaian esai otomatis simple-o = Analyzing words number and answer s length ratio s influence to the grading accuration in automated essay grading system simple o - Siahaan, Vebrianty, author (Universitas Indonesia. Fakultas Teknik, 2016)