Dr. K R PundareekaVitala, and Arun James. “Global Clue of International Exchanges on SENSEX and NIFTY for Portfolio Formulation under International Diversification Strategy”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 18, no. 09, July 2021, pp. 266-7, https://archives.palarch.nl/index.php/jae/article/view/9310.