1. Abdallah, C., & Langley, A. (2013). The double edge of ambiguity in strategic planning. Journal of Management Studies, 51(2), 235–264. https://doi.org/10.1111/joms.12002
2. Agwu, P. (1992). Strategic planning in higher education: A study of application in Arkansas senior colleges and universities. Dissertation Abstracts International, DAI-A 53/08, 0745 (University Microfilms No. AAC 9300582).
3. Ansoff, H. (1979). Strategic management. New York: Wiley.
4. Ansoff, H. (1984). Implanting strategic management. Englewood Cliffs, NJ: Prentice Hall International.
5. Ansoff, H. I., & McDonnell, E. (1990). Implanting strategic management (2nd ed.). Englewood Cliffs, NJ: Prentice Hall.