Keanekaragaman dan daya degradasi selulosa jamur tanah di hutan bekas terbakar wanariset-Semboja, Kalimantan Timur [ Soil fungi biodiversity of postburning forest in wanariset-Semboja, East Kalimantan and Their capability in Cellulotic Degradation]
Artikel Jurnal
Petersen, William
Population
Macmillan, 1961
Buku Teks
Petersen, William
Population
Macmillan, 1969
Buku Teks SO
The population problem
edited by Stanley Johnson
John Wiley & Sons, 1973
Buku Teks SO
Readings in population
edited by William Petersen
Macmillan, 1972
Buku Teks SO