Sondang, and Ganda T. Hutapea. “ANALYSIS OF THE INFLUENCE OF BUSSINESS RISK AND FINANCIAL RISK AGAINST THE PROFITABILITY OF TELECOMMUNICATIONS SUB SECTOR COMPANIES LISTED ON THE INDONESIA STOCK EXCHANGE (2012-2019 PERIOD)”. Fundamental Management Journal 7, no. 2 (October 26, 2022): 43–63. Accessed April 3, 2025. http://ejournal.uki.ac.id/index.php/jm/article/view/4275.