The Challenge of climate change for developing country: Indonesia's case
Artikel Jurnal
Essex Institute historical collection / The Essex Institute
The Essex Institute, 1956
Buku Klasik
"A few good books": south dakota's country school libraries Lisa Lindell
Artikel Jurnal
Mahathir bin Mohamad, 1925-
The challenge
Pelanduk Publications, 1986
Buku Teks SO
Webb, James
A Country such as this
Bantam Books, 1985
Buku Teks SO