Kewenangan notaris berkaitan dengan surat pernyataan oper hak atas tanah garapan: analisis putusan Mahkamah Agung Republik Indonesia nomor 122PK/PDT/2019 = The authority of notary pertaining to pass a letter of intent with the land under cuntivation: analysis decisions of The Supreme Court of The Republic of Indonesia number 122PK/PDT/2019