The use of isotopes in soil organic matter studies : report of the FAO/​IAEA Technical Meeting....
Pergamon Press, 1966
 Buku Teks
Li, Shaofan
Advances in soft matter mechanics
[Springer, ], 2012
 eBooks
Fery Alfiansyah
Pola Spasial Soil Organic Matter (Som) Dan Hubungannya Dengan Pertanian Padi Di Kecamatan Semanu Dan Ponjong, Kabupaten Gunungkidul = Spatial Pattern of Soil Organic Matter (SOM) and Its Relationship with Paddy Farmland in Semanu and Ponjong Districts, Gunungkidul Regency
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
 UI - Skripsi (Membership)
Chemistry, agriculture and the environment
edited by Mervyn L. Richardson
Royal Society of Chemistry, 1991
 Buku Teks
Briggs, David J.
Agriculture and environment: the physical geography of temperature agriculture systems
Longman Scientific & Technical, 1994
 Buku Teks