4Ansoff, H.I. (1965), Corporate Strategy: An Analytic Approach to Business Policy for Growth and Expansion, McGraw-Hill, New York, NY.
5Chakravarthy, B. S. and Lorange, P. ( 1991 ), Mmmging the Strategy Process: A Framework for a Muhibusiness Firm, Prentice-Hall, Englewood Cliffs, NJ.
6Prescott C.Ensign.Interrelationships and horizontal strategy to achieve synergy and competitive advantage in the diversified firm[J] .Mamgement Decision.London: 1998. Vol. 36, Iss. 10; pg. 657.
