Asuncion, Dixie Pablo, et al. “Influence of Acoustic Waves on the Shelf Life Quality of Broccoli (Bsassica Oleracea Var. Italic)”. International Journal on Advanced Science, Engineering and Information Technology, vol. 10, no. 1, Mar. 2020, pp. 395-9, doi:10.18517/ijaseit.10.1.8363.