Juridical Analysis Of The Main Duties, Functions And Authorities Of The Land Office And The Participation Of Notaries/PPAT To Prevent The Practice Of Procurement Or Relief Of Land Rights For Legal Certainty (Research Study On Land Offices In Bintan District) - Azizir, Riady; Idham; Nofrial, Ramon (International Journal of Advance Research and Innovative Ideas In Education, 2022)