https://books.google.co.id/books?hl=id&lr=&id=pMx1DwAAQBAJ&oi=fnd&pg=PP1&dq=buku+Ekonomika+Pembangunan+dan+Regional+&ots=mtU5t8Tjh2&sig=u9pWDObugPIPq-be_ueoemcuMRI&redir_esc=y#v=onepage&q=buku%20Ekonomika%20Pembangunan%20dan%20Regional&f=false
