hapus3
Economics and Finance in Indonesia, 1999
Artikel Jurnal
Prata, Stephen
Sams Publishing , 1987
Buku Teks SO
Coffin, Stephen
Osborne/McGraw-Hill, 1986
Buku Teks SO
Brandi, Karl
Jonathan Cape, 1949
Buku Teks SO
Komarudin
Jakarta Yayasan Realestat Indonesia 1997,
Buku Teks