(1)
Prastika, E. B.; Gunawan, A. I.; Bayu Dewantara, B. S.; Hozumi, N.; Prianto, C. E. The Enhancement of 3 MHz Ultrasonic Echo Signal for Conversion Curve Development for Acoustic Impedance Estimation by Using Wavelet Transform. EMITTER Int’l J. of Engin. Technol. 2018, 6, 105-123.