Lawrence, Paul R.
Organization and environment : managing differentiation and integration
Harvard Business School Press, 1986
 Buku Teks
Bolton, William, 1933-
Differentiation and integration
Longman Sciantific & Technical, 1995
 Buku Teks
Siddons, A.W.
A new calculus, part 1 : with chapters on co-ordinate geometry differentiation and integration as summation
Cambridge University Press, 1963
 Buku Teks
Maachou, Abdelkader
OAPEC : an international organization for economic cooperation and an instrument for regional integration
Berger-Levrault, 1982
 Buku Teks
Whittaker, J. Richard
Cellular differentiation
Dickenson, 1968
 Buku Teks