Tanggung jawab Notaris dalam pembuatan akta jual beli berdasarkan Perjanjian Pengikatan Jual Beli (PPJB) lunas yang hasil pembayarannya dikembalikan kepada pihak pembeli (Studi kasus Putusan Majelis Pengawas Pusat Notaris Nomor 04/B/MPPN/VII/2019) = The responsibility of a Notary Public in making sale and purchases deed based on the full paid-purchase binding agreement, in which the payments are returned to the purchaser (Study of The Notary Central Supervisory Board Decision No.04/B/MPPN/VII/2019.