Gladys AaniSujithaJ,Dharshika R,Jay shree S,Mounika L,Tharangini R. “NOVEL APPROCH FOR SMART SHOPPING IN SHOPPING MALL USING IOT”. International Journal of Advanced Science and Technology, Vol. 29, no. 7s, Apr. 2020, pp. 1628 -31, http://sersc.org/journals/index.php/IJAST/article/view/10850.