Rezha Fitriansyah, et al. “Concerted Action Dalam Menilai Praktik Penetapan Harga (Studi Putusan KPPU Nomor 15 KPPU-I 2019)”. Kertha Patrika , vol. 47, no. 2, Aug. 2025, pp. 196-1, https://doi.org/10.24843/KP.2025.v47.i02.p05.