Analisis variasi sanksi administratif dalam bentuk denda pada putusan persekongkolan tender (studi kasus putusan Mahkamah Agung Perkara Nomor 118 K/PDT.SUS-KPPU/2013 dan putusan KPPU Perkara Nomor 03/KPPU-L/2013) = Analysis of administrative sanctions variation in fine form at tender collusion verdict (case study of Mahkamah Agung Verdict No.118 K/PDT.SUS-KPPU/2013 and KPPU Verdict No.03/KPPU-L/2013) / Nadine Amarsha