Spangler, Merlin G. (Merlin Grant), 1894-
Soil engineering / Merlin G. Spangler, Richard L. Handy
Harper & Row, 1973
 Buku Teks
Toposequence of soil on the south slope of the Merapi Volcano to Baron Coast, Yogyakarta
 Artikel Jurnal
An introduction to primate conservation
edited by Serge A. Wich, Andrew J. Marshall
Oxford University Press, 2016
 eBooks
Biarez, Jean
Elementary mechanics of soil behaviour : saturated remoulded soils / by Jean Biarez and Pierre-Yves Hicher
A.A. Balkema, 1994
 Buku Teks
Unsaturated soil engineering practice/edited by Sandra L. Houston and Delwyn G. Fredlund
ASCE, 1997
 Buku Teks