Zharifa Rahmadhani, Alya, et al. “The Judge’s Ratio Decidendi in The Annulment of a Deed of Sale and Purchase Executed by a Land Deed Official (PPAT) (Review of Judgment No. 80 Pdt.G 2020 PN.Btl)”. International Journal of Educational Research & Social Sciences , vol. 7, no. 2, Apr. 2026, pp. 90-94, doi:10.51601/ijersc.v7i2.966.