Agustono, Efid, Daniel Sianturi, Andi Taufik, & Windu Gata. " ANALISIS SENTIMEN TERHADAP WARGA CHINA SAAT PANDEMI DENGANALGORITMATERM FREQUENCY-INVERSE DOCUMENT FREQUENCY DAN SUPPORT VECTOR MACHINE." Jurnal Informatika dan Rekayasa Elektronik [Online], 3.2 (2020): 111 - 119. Web. 22 Apr. 2021