Ministry of Natural Resources and Environment Malaysia, 2007
Multimedia
Sulistyoweni Widanarko, author
Fakultas Teknik Universitas Indonesia, 1991
UI - Laporan Penelitian
Don, Abdul Ghafar, author
Universiti Kebangsaan Malaysia, 2000
Buku Teks
Raymer, Robert, author
Editions Didier Millet, 2011
Buku Referensi
Zari Mahmood
Amber Pacific Sdn Bhd, 2005
Buku Referensi