Tirkey, C. A. “ATAL BIHARI VAJPAYEE’S CONTRIBUTION TO INDIA’S FOREIGN POLICY: A REALISTIC PLURALIST APPROACH”. International Journal of Research -GRANTHAALAYAH, vol. 5, no. 7, July 2017, pp. 646-53, doi:10.29121/granthaalayah.v5.i7.2017.6350.