Giofanny Marchellino Fransiscus Tulung, Erniyanti, Soerya Respationo, Markus Gunawan, and Mania, “JURIDICAL ANALYSIS OF THE VALIDITY OF DEEDS READ WITHOUT THE PRESENCE OF A NOTARY IN NOTARIAL PRACTICE IN BATAM CITY”, JISHUP, vol. 4, no. 4, pp. 2178–2182, Aug. 2026.