Patagundi, Basanna S., and N. S. Viswanath. “International Trade and Business Model With Special Reference to Operating System Software Products”. DHARANA - Bhavan’s International Journal of Business 8, no. 2 (December 7, 2017): 73–79. Accessed April 29, 2024. http://www.informaticsjournals.com/index.php/dbijb/article/view/16095.