Makna penempatan prasasti-prasasti pendek pada Candi Perwara dan Stupa Perwara di Kompleks Candi Plaosan Lor dalam perspektif agama Buddha Mahayana abad ke-9 Masehi = The meaning of short inscriptions placement in Candi and Stupa Perwara at Plaosan Lor Temple complex in Mahayana Buddha perspective from 9th ad century