TrisnobudiA., HoeiT. L., and NugrahaE. R. “The Measurement of Sucrose Content of Sugar Cane Using Ultrasonic Waves”. Jurnal Teknologi Dan Industri Pangan, Vol. 12, no. 1, May 2010, https://journal.ipb.ac.id/index.php/jtip/article/view/846.