N. ZahiraJahan, and M. Kalaipriya. “A Two-Stage Crawler for Efficiently Harvesting Deep-Web Interfaces”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 6, no. 2, Mar. 2018, pp. 1497-02, doi:10.61096/ijiarec.v6.iss2.2018.1497-1502.