Murtopo, Purno, Puji Wahono, and Indra Pahala. 2025. “Marketing, Product, and Pricing Strategies of Beverage Firms Facing Indonesia Sugar Tax ”. International Student Conference on Business, Education, Economics, Accounting, and Management (ISC-BEAM) 4 (2). https://journal.unj.ac.id/unj/index.php/isc-beam/article/view/61509.