Penetapan pasar bersangkutan dalam putusan komisi pengawas persaingan usaha no. 09/KPPU-L/2009 (analisis best practices dan empiris) = The analysis of relevant market delineation on commission for the supervision of businesscompetition's decision No. 9/KPPU-L/2009 (best practices and empirical analysis) / Fintri Hapsari