Economy and ecology in sustainable development
editor, SPES
Gramedia Pustaka Utama V, 1994
 Buku Teks
Indonesia : resources, ecology, and environment
edited by Joan Hardjono
Oxford University Press, 1991
 Buku Teks SO
Southwick, Charles H.
Ecology and the quality of our environment
D. Van Nostrand, 1976
 Buku Teks SO
Southwick, Charles H.
Ecology and the quality of our environment
D. Van Nostrand, 1972
 Buku Teks SO
Indonesia : resources, ecology, and environment
edited by Joan Hardjono
Oxford University Press, 1991
 Buku Teks SO