Nursing outcomes classification (NOC) : measurement of health outcomes
editors, Sue Moorhead, Elizabeth Swanson, Marion Johnson, Meridean L. Maas
Elsevier, 2018
 Buku Teks SO
Waterworth, Derek
Marketing for the small business Derek Waterworth/ Derek Waterworrth
Basingstoke Macmillan ., 1987
 Buku Teks SO
Brewer, Derek
An introduction to Chaucer / Derek Brewer
Longman, 1984
 Buku Teks SO
Osbourn, Derek
Introduction to building / Derek Osbourn
Mit chell, 1991
 Buku Teks SO
Osbourn, Derek
Components / Derek Osbourn.
Mitchell's, 1989
 Buku Teks SO