ARWENDI, YETTI. “IMPLEMENTATION OF PRICE DETERMINATION IN DOWNLOAD MARKET AND MARKET CODIMS RELATED TO THE LAW NO. 5 YEAR 1999 REGARDING MONOPOLY AND PRACTICAL LIMITS BUSINESS COMPETITION IS NOT HEALTHY”. Human Sustainability Procedia, May 2018, https://periodical.uthm.edu.my/index.php/hsp/article/view/1174.