Supianto, Supianto. “Upaya Hukum Keberatan Terhadap Putusan Badan Penyelesaian Sengketa Konsumen (BPSK)”. JURNAL RECHTENS 2, no. 2 (December 31, 2013): 73–90. Accessed June 5, 2023. http://ejurnal.uij.ac.id/index.php/REC/article/view/86.