Hariyadi, Sugeng, Fitria Hidayanti, and Sunartoto Gunadi. 2019. “Rancang Bangun Sistem Kalibrasi Alat Ukur Tekanan Rendah”. Jurnal Ilmiah Giga 18 (2):35-42. https://doi.org/10.47313/jig.v18i2.573.