Nurcholik, S., L. Adnyani, D. Sa’adiyah, L. Rahmah, and R. Revari. “Analysis of Swirling Flow on Cyclone Separator Using CFD to Reduce Particulate Matter of Diesel Engine”. SPECTA Journal of Technology, vol. 2, no. 1, Nov. 2019, pp. 71-76, doi:10.35718/specta.v2i1.97.