Energy perspectives on Singapore and the region
Singapore : ISEAS, 2007
 Buku Teks
Khemani, L.D., editor
Chemistry of phytopotentials : health, energy and environmental perspectives
Springer, 2012
 eBooks
Hunt, V. Daniel
Handbook of conservation and solar energy : trends and perspectives
Van Nostrand Reinhold Company, 1982
 Buku Referensi
Perspectives
London : Hamish Hamilton Ltd
 Majalah, Jurnal, Buletin
Perspectives on ....
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