Kurniawan, Wahyu Dwi, Agung Prijo Budijono, and Nur Aini Susanti. 2017. “Developing Computer Assisted Media of Pneumatic System Learning Oriented to Industrial Demands”. Jurnal Pendidikan Teknologi Dan Kejuruan 23 (3):304-9. https://doi.org/10.21831/jptk.v23i3.13417.