Ferdiansyah, F., E. Negara, and Y. Widyanti. “BITCOIN-USD TRADING USING SVM TO DETECT THE CURRENT DAY’S TREND IN THE MARKET”. Journal of Information Systems and Informatics, Vol. 1, no. 1, Mar. 2019, pp. 70-76, doi:10.33557/journalisi.v1i1.7.