Given, L. M. (2008). Theoretical frameworks. In The SAGE Encyclopedia of Qualitative Research Methods (Vol. 0, pp. 870-873). SAGE. https://doi.org/10.4135/9781412963909 Provides an overview and discussion of theoretical frameworks.
Rallis, S. (2018). Conceptual framework. In The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation (Vol. 4, pp. 355-356). SAGE. https://doi.org/10.4135/9781506326139
National University (2024). Researching frameworks: Locating theoretical and conceptual frameworks. https://resources.nu.edu/researching-frameworks/frameworks. An excellent video helping to demystify theoretical and conceptual frameworks.