Widiana, I Gde Raka.
" KAJIANTEKNOLOGI PIEZO ESWL(EXTRACORPOREAL SHOCKWAVE LITHOTRIPSY) RICHARD WOLF TYPE PIEZOLITH 3000 DIBANDINGKAN ALAT ESWL TYPE YC-9200 ESWL DAN B ULTRASOUND SYSTEM" <em>Medicina</em> [Online], Volume 45 Number 1 (21 January 2015)