Pusat Pengkajian, Pengolahan Data, dan Informasi (P3DI) Sekretariat Jendral DPR-RI, {s.a.}
Majalah, Jurnal, Buletin
Owens, Edgar
Gadjah mada University Press, 1980
Buku Teks SO
tim penulis Josi Khatarina [and others]
Indonesia Center for environmental Law (ICEL), [date of publication not identified]
Buku Teks SO
oleh Wiwiek Awiati ... [and others]
ICEL, 2006
Buku Teks SO
Gatot Rianto
ICEL, 2007
Buku Teks SO