Southwick, Charles H.
Ecology and the quality of our environment
D. Van Nostrand, 1976
Buku Teks
Southwick, Charles H.
Ecology and the quality of our environment
D. Van Nostrand, 1972
Buku Teks
Partai politik, pilkada dan media massa
Artikel Jurnal
McNaughton, S.J.
Ekologi umum = General ecology
Gadjah Mada University Press, 1990
Buku Teks
Media for our time : an anthology / edited by Dennis DeNitto
Holt, Rinehart and Winston, 1971
Buku Teks