Kewenangan komisi pengawas persaingan usaha (KPPU) dalam menetapkan sanksi untuk mengubah klausula perjanjian (studi terhadap putusan nomor 02/KPPU-L/2008 tentang pemberian hak pengelolaan reklame di lokasi outdoor Bandara Internasional Juanda) = Authority of the business competition supervisory commission (KPPU) to impose sanction for change clause agreement (study to the KPPU decision no. 02/KPPU-L/2008 concerning the granting of the outdoor advertisement board management rights at Juanda International Airport Surabaya - Shobi Kurnia, author (2014)