Tanggung jawab notaris terhadap akta jual beli saham tanpa bukti pelunasan dan bukti setor (studi kasus putusan Pengadilan Negeri Jakarta Selatan nomor : 259/pdt.g/2017/pn.jkt.sel.) = Notarys responsibility for deed of sale and purchase of shares without proof of payment and proof of deposit (case study of south jakarta district court decision number 259/pdt.g/2017/pn.jkt.sel.)