J. A. . Jaya, H. A. Parapat, F. Achmad, A. P. Tenggara, and M. Viegri, “The disparity of legal certainty in fiduciary guarantee execution following the Constitutional Court Decision Number 18/PUU-XVII/2019 based on a comparative study with Mortgage”, PSSJ, vol. 6, no. 6, pp. 41–50, Jun. 2026.