na INLIS000000000006219 20240826102230 0010-0921000215 ta 240826 0 eng 330.72 330.72 JOH r Johnson L. Glenn Research Methodology for Economics Phylosophy and Practice / Johnson L. Glenn London : Macmilan publishing company, 1986 250 hlm ; 21 cm Metodologi penelitian ekonomi Kelas 330 00000008551