na INLIS000000000003104 20250303082626 0010-0121001470 Metodology penelitian ekonomi Arief, Sritua Jakarta : Universitas Indonesia, 1993 xi, 318 p. : ill. ; 21 cm 979-456-114-2 167 ARI m 167 Penelitian Ekonomi Metodologi 250303 g 0 ind 1736/PSEKP/2025