Pranata, Kimas, Tetti Samosir, and B. F. Sihombing. “Does The Validity of a Sale and Purchase Deed Persist When Underlying Debt Is Concealed? ”. Jurnal Ilmu Hukum Kyadiren 7, no. 1 (May 31, 2025): 221–234. Accessed June 15, 2025. https://journal.stihbiak.ac.id/index.php/kyadiren/article/view/288.