Maple, James
Advanced chemistry : an enquiry-based approach
John Murray, 1996
 Buku Teks
Clough, Peter
A student's guide to methodology : justifying enquiry
Sage Publications, 2002
 Buku Referensi
Yoshino, Kosaku
Cultural nationalism in contemporary Japan a sociological enquiry
Routledge , 1992
 Buku Teks
Koen Vermeir
The science of sensibility: reading Burke?s philosophical enquiry
Springer, 2012
 eBooks
Rivers, W. H. R. (William Halse Rivers), 1864-1922
Kinship and social organization; together with The genealogical method of anthropological enquiry
The Athlone Press, 1968
 Buku Teks