Rahman, Arief, et al. “Analisis Hukum Kekuatan Mengikat Perjanjian Pengikatan Jual Beli (PPJB) Tanah”. Jurnal Fundamental Justice, vol. 6, no. 1, Mar. 2025, pp. 101-16, https://doi.org/10.30812/fundamental.v6i1.4885.