Effendi, Fery Ardiansyah, and Yuliant Sibaroni. “Sentiment Classification for Film Reviews by Reducing Additional Introduced Sentiment Bias”. Jurnal RESTI (Rekayasa Sistem Dan Teknologi Informasi), vol. 5, no. 5, Oct. 2021, pp. 863-75, https://doi.org/10.29207/resti.v5i5.3400.