Londoño, Luis Fernando, Julián Antonio Villamarín, Nylho Antonio Dorado, and Daniela Andrea Montilla. 2015. “Implementation of Ultrasonic Characterization System Parametric Soft Biological Tissue”. I+ T+ C- Research, Technology and Science 1 (9). Popayán, CO:43-50. https://revistas.unicomfacauca.edu.co/ojs/index.php/itc/article/view/itc2015_pag_43_50.