Rachmat C., Antonius, and Yuan Lukito. 2015. “Implementasi Sistem Crowdsourced Labelling Berbasis Web Dengan Metode Weighted Majority Voting”. Ultima InfoSys : Jurnal Ilmu Sistem Informasi 6 (2), 76-82. https://doi.org/https://doi.org/10.31937/si.v6i2.223.