Chu, Hung-fu, 1913-
How to know the immature insects
Wm.C. Brown Communication, 1992
 Buku Teks SO
Nursing know-how interpreting ECGs
edited by Jennifer P. Kowalak
Lippincot Williams & Wilkins, 2009
 Buku Teks SO
McIntosh, Jane
The practical archaelogist: how we know what we know about the past
Checkmark Books, 1999
 Buku Referensi
Pearl, Richard M.
How to know the minerals and rocks / Richard M. Pearl
McGraw-Hill, 1955
 Buku Teks
Prabhavananda, Swami, 1893-1976
How to know god the yoga aphorism of patanjali
Vendanta press, 1962
 Buku Teks SO