Sutanto, Willi, Sutanto Hadisupadmo, Rima Widyasti, and Annisa Salsabiila. “Prototipe Alat Ukur Luas Lingkaran Dalam Silinder Tegak Menggunakan Sensor Ultrasonik”. Jurnal Otomasi Kontrol dan Instrumentasi 12, no. 1 (April 2, 2020): 19-28. Accessed February 14, 2026. https://journals.itb.ac.id/index.php/joki/article/view/13438.