M Rizky Kurniansyah, and Hamdi,S., M.Kom. “Modifikasi Aktuator Open Close Flapper Puppet Valve Di Bag Filter 421-BF1”. Prosiding Seminar Nasional Teknik Mesin, vol. 13, no. 1, Dec. 2023, pp. 446-55, https://prosiding.pnj.ac.id/sntm/article/view/1834.