Ramdani, Sulaeman Deni, et al. “The Dual-Design-Based Pneumatic Simulator As Supporting Media for Electro-Pneumatic Practicum in Vocational Higher Education”. Jurnal Pendidikan Vokasi, vol. 9, no. 3, Feb. 2020, pp. 307-1, doi:10.21831/jpv.v9i3.27345.