West Kutai builds the future
Humas Pemkab Kutai Barat, 2008
Buku Referensi
Saarinen, Eliel
The City its growth, its decay, its future
Van Nostrand Reinhold, [1958]
Buku Teks
Beus, J. G. De
The future of the west / J. G. de Beus
Harper & Brothers, 1953
Buku Teks
Sutan Takdir Alisjahbana
Bumantara : the integration of Southeast Asia and its perspectives in the future
Dian Rakyat, 1987
Buku Teks
Indonesian mining and its place in the economy of the future
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