Anandamurugan S., Mohana Priya V., Kaviya K., Aarthi M. “Vehicle Number Plate Detection Using K Means With SIFT OCR”. International Journal of Advanced Science and Technology, Vol. 29, no. 3, Mar. 2020, pp. 11103 -09, http://sersc.org/journals/index.php/IJAST/article/view/28005.