“…By using DDP, the contribution of GRI at the village level can be known, for example the GRI in Sibandang Village, North Tapanuli Regency is 0.39 [18] . These measurements aim to see the achievement of development programs that prosper the community and educate the nation's life [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] – 22] . However, the measurement of development will never reach its goal, if the data used as a reference for calculations is not accurate.…”